Bosch VP30 VP44 injection pump repair solution

[Archibald]

And what about to change only the electronic module?
If my memmory is right, I think it was 100-150?...maybe less.

I think I can order the new module, but not sure if it will need to be reprogrammed or not...

I have right now an Opel Astra here with the defective pump... if anyone knows how to load the soft into the new module, I could do a try...

Sounds better than the solder method, I don?t like to receive a customer call asking why his car is burning... :rolleyes:
Cost is about ?200-300 so it a costly way of fixing pump comparing to the soldering method.

[croweaglefred]

now thats its done , its running alright. no power when its cold , after it warms up it has some power id say about half, but it doesnt kick in untill untill 2000rpm like i threw a switch , is this because of maybe wrong type of transistor . help nice to have it up and running but id like full power again .

[Archibald]

now thats its done , its running alright. no power when its cold , after it warms up it has some power id say about half, but it doesnt kick in untill untill 2000rpm like i threw a switch , is this because of maybe wrong type of transistor . help nice to have it up and running but id like full power again .
What transistor type have you used?

[josepz]

Cost is about ?200-300 so it a costly way of fixing pump comparing to the soldering method.

Here is 100-150?...obviusly more than solder method, BUT... does anybody repaired correctly a pump with this method?

Seems to be there are some people that say "no power more than 2000rpm" or "after a short time the wired fried again"...

About the new electronic module... ?Do you know if it needs to be reprogrammed?

[Archibald]

Here is 100-150€...obviusly more than solder method, BUT... does anybody repaired correctly a pump with this method?

Seems to be there are some people that say "no power more than 2000rpm" or "after a short time the wired fried again"...

About the new electronic module... ?Do you know if it needs to be reprogrammed?
I would be interrested if this would be 100-150 Euros for a module. Seems like bargain. And I know that Bosch service is doing it on daily basis when only a transistor is gone and the pump mchanical part don't require any work. This means that the original transistor is good enough.
Unfortunately I cant help with programming issue - I just don;t know if its required or not.

[josepz]

I would be interrested if this would be 100-150 Euros for a module. Seems like bargain. And I know that Bosch service is doing it on daily basis when only a transistor is gone and the pump mchanical part don't require any work. This means that the original transistor is good enough.
Unfortunately I cant help with programming issue - I just don;t know if its required or not.

I will ask fot the exact price and post it here.
Anyway, is necessary to know the programming answer...
Obviusly bosch said is required, but I know there are some people out there that said they changed for second hand pumps without problem, so who knows...

About the soldering method, I have a doubt... what is the real problem, the broken wires and the difficult to resolder again?
So you add the transitor? To reemplace the wires?
Or the problem is the original transistor that fries and have nothing to do with the wires?

[Archibald]

With programming, there are two things - one is immobiliser coding which is only required when doing a Ford. Second thing is a firmware - does the "blank" ECU need coding with new firmwere? I don't know but the second hand pumps are a different issue.

As per soldering - it's quite a tricky one and many people fail doing it.

[dudaso2]

regarding to programming...when you read ecu data from OBD2 connector from ECU....what ecu you read ? ECU on top by fuel injection pump ( who have problems with transistor ) or another ECU who control this ECU

[Archibald]

regarding to programming...when you read ecu data from OBD2 connector from ECU....what ecu you read ? ECU on top by fuel injection pump ( who have problems with transistor ) or another ECU who control this ECU
Car (engine) ECU. Aparently pump car store fault codes as well and sends it to the engine ECU so that you can read it.

[josepz]

With programming, there are two things - one is im*obiliser coding which is only required when doing a Ford. Second thing is a firmware - does the "blank" ECU need coding with new firmwere? I don't know but the second hand pumps are a different issue.

As per soldering - it's quite a tricky one and many people fail doing it.

But where is the problem, the fact of solder aluminum?
I mean, is only required to solder the aluminum wires or is necesary the transistor too?

About the ECU, in my experience you will connect with engine ECU, that will check the pump module, BUT not always you get a error code, right now I have a car here with no error code and the pump faulty, and won?t start.

[Archibald]

I don’t understand your question. Transistor has to soldered to 4 points on the board, 2 of the look like painted thus it gets damaged when soldered.
As per your next question – I don’t know. Usually codes are being stored in the engine ECU.

[josepz]

I mean if the broken part is the manufacturer transistor or the aluminum wires around it.
I read somewhere the problem is the wires that goes hot with the hours of use, and one day they cut, but not sure if it is due to a transistor faillure and needs to be changed, or if the fact of solder a new transistor on the board is because the problematic soldering of aluminum wires...

About the pump faillure codes, the Opel Astra Y20DTH that I have in the shop won?t start, and all points to the famous pump faillure, BUT... no error code at all...

Even I can see the pump desired fuel qt, the pump rpm while try to start, and rest of live data with no problems, but no there is no fuel injection.... and this isn?t the first time I saw that...So I said not always the pump error code appears

[busaman]

I don?t understand your question. Transistor has to soldered to 4 points on the board, 2 of the look like painted thus it gets damaged when soldered.
As per your next question ? I don?t know. Usually codes are being stored in the engine ECU.


can you change the font colour i cant read it black on dark blue not a good choice.

[busaman]

I mean if the broken part is the manufacturer transistor or the aluminum wires around it.
I read somewhere the problem is the wires that goes hot with the hours of use, and one day they cut, but not sure if it is due to a transistor faillure and needs to be changed, or if the fact of solder a new transistor on the board is because the problematic soldering of aluminum wires...

About the pump faillure codes, the Opel Astra Y20DTH that I have in the shop won?t start, and all points to the famous pump faillure, BUT... no error code at all...

Even I can see the pump desired fuel qt, the pump rpm while try to start, and rest of live data with no problems, but no there is no fuel injection.... and this isn?t the first time I saw that...So I said not always the pump error code appears

the one i have in the workshop has blown the transistor off the base if you look back a coulple of pages i posted a picture.

[Meat-Head]

can you change the font colour i cant read it black on dark blue not a good choice.

Oh if you 'select all' (control a) it can help temparally, thanks to my dead dad for that tip.

If you scroll ALL the way to the bottom of the page, you will see
flip down thing, this changes the 'skin' i have it set to "christmas 2008".

somewhere you can set this in your user control panel, so as you long on elsewhere it auto changes color.

thanks to sminoff_rules for the tip.

[busaman]

ahh i see it now.

[fixitforfree]

If the information I have seen sofar is correct and the original mosfet has # 44n25 than it is a fet that can dissipate a power of up to or around 300w. The original fet is mounted directly to the pump lid. This way it will loose a lot of its heat. In addition to this the lid is cooled using its own fuel underneath in the housing thus all together a very good cooling is quaranteed.
Fet replacement should work as long as you are able to fix it in such a way that it can loose its heat. Whether the IRFZ44n (power dissipation 94W) is a good replacement I do not know. I also do not know if the way it is shown to rebuild is correct, I have got a lot of questions still myself. Currently I am investigating if IRL 2505 would be better. It has higher current features as own power dissipation (200W) . Anyway no matter what you choose it will at least have to have a proper way of cooling (my modest opnion).
succes:hmmmm2:
I stumbled across this blog by mistake - Fraud motor company diesel ECU's use a SUM85N15 - 50Amps at 125 degrees (150Amps peak) - I have had these running untill the solder melts and they fall off the PCB! - solder them back on and they work fine again. - maybe this would be a good altenative - its a TO263 package that may be easier to solder down? - For everybodys info - the reason the PCB's parts are not in plastic packages is due to the doping of the plastic package - the fireproof additive in the package causes them to breakdown over time when run at high temperatures (hence the silicone gel used instead!) - fitting this type of device in engine compartment areas is not recomended, but as these silicon die's are not replaceable and technicaly makes these PCB's unserviceable there is no alternative. - I do not know the connection inside these pumps but if it were my vehicle I would consider mounting the Hexfet outside of the pump ECU - it will almost certainly fail again so would be easier to repair the next time around?

[fixitforfree]

picture
Does that way( in .pdf file ) of soldering works with irfz44n ???

Confused? - N chanel mosfets - Drain - should be Pulled Positive - not Ground? Source should be ground - is the labeling wrong for GND?

[fixitforfree]

Hi
The day before yesterday I have in the garage an Opel Astra G 2.0 DTH engine pump vp44, trouble code 1630, I found and changed the faulty transistor with a new IRFZ44N engine started, going well at idle but is not accelerating more than 1300 rpm.Yesterday an BMW E46 320d she had the same problem the same result .What is wrong?

IMPORTANT NOTE TO EVERYONE - the silicone gel should not be toughed anywhere but the transistor location - if you look carefully (with magnifying glass) there are hundreds of very fine exposed gold wires on this board damage one of these and its game over! realy no going back - looking at above image its too late - plus the pins are wrong anyway!

[treo]

IMPORTANT NOTE TO EVERYONE - the silicone gel should not be toughed anywhere but the transistor location - if you look carefully (with magnifying glass) there are hundreds of very fine exposed gold wires on this board damage one of these and its game over! realy no going back - looking at above image its too late - plus the pins are wrong anyway!
What pins are wrong ?

[maddy7]

[QUOTE=
swap EDU and virginise it with KTS
then refit the pump
job done[/QUOTE]


Could you please explain this procedure? A mate has a KTS530 and the PSG5 leads but is not sure how to do this in the bosch software.

Thanks

[Archibald]

Could you please explain this procedure? A mate has a KTS530 and the PSG5 leads but is not sure how to do this in the bosch software.

Thanks
Isn't that only applicable to Ford VP pumps?

[maddy7]

I've just spoken to my mate and he says he has the software and leads but does not know what to connect on the breakout box. This is for a VP pump to be installed onto a ford transit

[Archibald]

Are you installing a recon pump or just a second hand? Recon is a virgin anyway, plug and play. Second hand needs to be virginalised.
where do you live?

[maddy7]

I'm in Bolton. I think the pump is secondhand. I'm not doing the job it is my mate. I just support them with IT (ex-mechanic). He bought the PSG5 lead from fleebay without instructions.

[maddy7]

Does anyone have instructions on how to virginize these pumps using the KTS and breakout box?

Thanks

[Archibald]

I'm not sure anyone who knows will give this information, but I would think that instead of trying doing it from the pump side you could try and add new pump immo code to car ECU (like you do when new immobiliser is added) . I think KTS can do it.

[maddy7]

Thanks for the reply

[r6eck]

wire up instructions are on esi,or buy the right lead ,or go see Tony Sefton

[tidiza]

Too bad this solution came up two years too late.. I had to pay my ass off to local ford dealer, new VP30 was over 1500 euros installed.. I'm still very interested about this solution, maybe I will by few fets to garage just in case..

Good job!

[maddy7]

wire up instructions are on esi,or buy the right lead ,or go see Tony Sefton

Thanks for the reply. I'll call over tomorrow and give it a go.

[r6eck]

:wink:



Dont be shy with the thanks button

[ATTZ]

Courtesy of Drivergabriel...He's a Giver now...:flowers:
I just want to download this file, I'm writing for getting messages to get access for downloads. sorry for flood & offtop :(

[busaman]

I'm not sure anyone who knows will give this information, but I would think that instead of trying doing it from the pump side you could try and add new pump immo code to car ECU (like you do when new immobiliser is added) . I think KTS can do it.

when doing fords using dec superscan i just mach pcu to pcm takes about 12 minutes.

[lakerbas]

hello,friends,try to use IRLS3034.It should work much better and no overheating.:tee:


Hello there,

are you sure this is better than the irfz44?

thanx

[erinyen]

i followed the injection pump repair from here and works well.considering that old transistor is burned because come away from the injection pump cover and had no cooling,i fixed a radiator outside for better cooling.at first i could not ride more than 1500rpm,the issue was resolved after a few km

[cristi_bv]

I didn't have the chance to test it yet,but i will try it and post results.If anybody has a vp44 in work and can test irls3034 would be great.In a week i should have a car for test so until then i can't say anything for sure.

[buges]

Im about to do this tonight, gonna try a copper shim & some akasa 450 thermal compound to keep the transistor cool. I've just had a quick look at the irfz44 data sheet & the max temp quoted is 175c. The max for the thermal compound is 200c

[newbieboy]

Im about to do this tonight, gonna try a copper shim & some akasa 450 thermal compound to keep the transistor cool. I've just had a quick look at the irfz44 data sheet & the max temp quoted is 175c. The max for the thermal compound is 200c

I have sourced a number of FDB44n25 transistors (from China). They cost me 3 UK pounds each (with the shipping charges) I have some to spare if anyone wants one or two.

[buges]

newbieboy Thanks for the offer but i've got afew of them aswell.

I've read that people are having trouble soldering to the pads because of the gel. I used isopropyl alcohol to clean the pads & a tiny drop of no clean flux.

Some one posted himself doing the repair on yo*tube just search for VP44 NPARAWA

Hope this helps

[jerry.shaw]

we have similar problem with skoda superb 2.5 l v6 ....info in this tread will surely help me.....

[Archibald]

...

Some one posted himself doing the repair on yo*tube just search for VP44 NPARAWA

Hope this helps
Really nice video...but if you look at most pump failures, it's the transistor connection that fails (burns) and these guys are using existing legs to solder new transistor. So basically not fixing what fails, just replacing transistor. And we all know that soldering one leg is the main problem.
I just wonder how long this fixing will last...

[buges]

Refitted mine this afternoon & it still wont start (original transistor needed replacing cos of burnt leg). opened it up while on the car & no burn marks etc.. on the new transistor.can anybody tell me what the transistor drives, is it the 12v to the solenoid at the side of the pump where the injector pipes are?? if not what?

[tom_sawyer]

Hi people .

this post lead me to your forum, my work relates with this pumps and other injection systems, so, if you have some questions about some injection system, just ask =)


i just don't undestand why i can't access to the pictures...

can somewone help me about that?

i would be wonderful

[tom_sawyer]

oops that would be wonderfull...

sorry lol

[std]

Hi people

In the Presentaci?n1.pdf (http://www.digital-kaos.co.uk/forums/attachments/f114/8503d1261613987-bosch-vp30-vp44-injection-pump-repair-solution-presentacion1.pdf) file enclosed by dashcoder on page 4 the Source connection is shown going to the edge connector in green next to the gate pin ( in blue )
I have continuity from the transitor gate pin to the edge connector pin, but not from the transistor source pin to to the edge connector pin as shown in this PDF file.
Should I expect to have continuity? I do have a very low resistance to ground ( almost 0 ohm ) from this edge connector pin. Perhaps this pin goes to the coil that controls the solenoid and I am measuring the resistance of the coil to ground ?
This edge connector pin labelled as the source, as far as I can see, does not to go directly to the transistor, it goes to the SMD capacitors next to it.
Any help would be very much appreciated

[blockhead1]

In the Presentacion file enclosed by dashcoder on page 4 the Source connection is shown going to the edge connector in green next to the gate pin ( in blue )
I have continuity from the transitor gate pin to the edge connector pin, but not from the transistor source pin to to the edge connector pin as shown in this PDF file.
Should I expect to have continuity ? I do have a very low resistance to ground ( almost 0 ohm ) from this edge connector pin. Perhaps this pin goes to the coil that controls the solenoid and I am measuring the resistance of the coil to ground ?
This edge connector pin labelled as the source, as far as I can see, does not to go directly to the transistor, it goes to the SMD capacitors next to it.
Any help would be very much appreciated

That's interesting, dashcoders' presentation implies that you can connect the new transistor directly to the edge connector pin, but in the more complete instructions found in the BOSCHE VP44 rar file posted by PremierD on page 2 ( courteousy of Gabriel ), the Source leg is connected to the main board, not the edge connector.
It would be nice to know where the transistor Source leg is connected to, so that the connection could be tested with an ohmmeter. After all, it is being reported here that it is the connection that more commonly fails. In my experience, when a connection to a transistor is intermittant this in itself is enough to cause the transistor to burn out and fail. I have seen such a problem a few times with output transistors in audio equipment when their outputs are switched through electrical contacts like headphone sockets which became oxidised over time.
Can anyone confirm where the source leg goes to ? Looking at the main board it appears to be floating, ie: going nowhere
Thanks to all for their efforts with this.

[Craig in Spain]

Thanks, very useful

[blockhead1]

As the drain goes to ground and the gate is receiving control signal from the main engine mangement ECU, I can only assume that the source connection is switching ground via the ribbon cable that is connected to the solenoid. It makes no sense that the source is connected also to the edge connector. I have always assumed that this transistor is controlling the solenoid responsible for metering as explained in the
VP44 Electronic Inj Pump.mht file.
Can anyone confirm this ?
It would be nice if we could find an anonymous person who works for Bosch to get schematics for the VP44 ECU, anyone here in such a position ?
My estimation of Bosch is very low right now, this ECU looks like it is designed to fail, these tiny aluminium wired connections are an absolute joke.

[andrija84]

Hello everybody,
I am new here. I can tell where to find transistor for VP44 pump. It has no. IRLR2905PBF and firm that sells it

https://ec.irf.com/v6/en/US/adirect/ir?cmd=catSearchFrame&domSendTo=byID&domProductQueryName=irlr2905pbf

[mexico16]

very uselul site ,if anybody can help with any info requards td focus would very much appreciate thanks tony

[etronic2]

Does anyone know what is the element in between those two transistors? It's got a burn mark on one of the yellow paths....

[hector]

Hello , In page 4, the pdf i belive is not good. This pdf is created for me in forum mobile-files.com. I asked in the forum if this pdf was correct, but anybody response for me.
Thanks

[treo]

Hello , In page 4, the pdf i belive is not good. This pdf is created for me in forum mobile-files.com. I asked in the forum if this pdf was correct, but anybody response for me.
Thanks
Hi
the PDF on page 4 is not god.

[lituzz]

Hi, Im sorry to ask this but what are the simptoms of the car or the pump that implies changing the transistor? thank you

[newbieboy]

Hi, Im sorry to ask this but what are the simptoms of the car or the pump that implies changing the transistor? thank you

In my own case, it was that the car wouldn't start and there was no fuel at the injectors.

[lituzz]

So this would may mean that the transistor drives the pump's solenoid?

[Archibald]

So this would may mean that the transistor drives the pump's solenoid?
Yes, you're right, but the transistor failure is just an indication that the solenoid is failing.

[del635]

can the solenoid be bought on its own?

[Archibald]

can the solenoid be bought on its own?
Yes, but only from the Bosch dealer which might be tricky as they not suppose to sell them to "publiC".

[von*craig]

hello everynody!!!

[costinbabes]

Hey there , i have some trouble with my car bmw320d with the vp44 pump. I think the Vp44 fuel temperature sensor is faulty but i dont know where it is located .Please give me some info about this fuel temperature sensor .
Thank you!

[DoubleM]

Hi,

I have a Rover 25 TD with a VP30 pump. The car started to stuttering sometimes for a few seconds, until yesterday, it shutted down and don?t start anymore.. Only starts sometimes and after a while it shut down again

My mech checked and fuel are delivered to injectors but it seems injectors n.? 1 and 3 have less fuel than others. We suspect from the VP30

Maybe the transistor problem? The transistor replacement guide is the same as for VP44?

[hector]

Hello, i find a video to how repair transistor.
Look it.
YouTube - VP44 NPARAWA

[etronic2]

http://img213.imageshack.us/img213/286/vp44.jpg (http://img213.imageshack.us/i/vp44.jpg/)


Can someone please measure component in between the two transistors (the one with yellow tracks)

There are 3 wires connected to it and it seems that one is connected to GND. I need to have measurment to try to recognise what it is. The component in my unit is broken after someone tried to repair the pump.

Whoever got opened ECU on the bench please can you check it for me...

Many thanks

[DoubleM]

One question

Suppose one of the wires that connect the pump to the main car ecu breaks. Whats the symptons? My car doesn?t start and my last hope it?s a cheap box (previous owner installed) thats soldered to pump.. or any wire that conects that box to the pump that breaks..

If any of that wires break or the pump has no correct signal from box/ecu the car starts?

[Archibald]

One question

Suppose one of the wires that connect the pump to the main car ecu breaks. Whats the symptons? My car doesn?t start and my last hope it?s a cheap box (previous owner installed) thats soldered to pump.. or any wire that conects that box to the pump that breaks..

If any of that wires break or the pump has no correct signal from box/ecu the car starts?
What box are you talking about? Looks like a previous owner mover the transistor onto the pump.

[DoubleM]

Previous owner solder a box to the pump.. As least some conections instead of going from pump to main ECU, go to that box. The box seems to be a cheaper one, and i have doubts if it?s the correct one. It says CR28 and from what i found, CR boxes are to Common Rail engines, what?s not it this case :afraid:

I?m afraid that box damaged the pump, giving it to much advance timing.. My car has "head lift" and i suspect it was related with to much advance

Maybe today or tomorrow i?ll try do desolder the box and solder the original wires and check

Some box photos:

http://img5.imageshack.us/img5/368/img1521x.jpg

http://img7.imageshack.us/img7/1741/img1522yo.jpg

[Archibald]

This looks like a tuning box but it should have a plug in connection between the pump and a socket. This looks like a DIY job and I would recomend to remove it and solder it back together. Hope this will help
The transistor failure is something dofferent.

[DoubleM]

I suspect that box isn?t for this car and previous owner cut the plugs and solder it.. No comments :stupid:

It is my last hope for the problem the car has.. Now it fires up but it works very badly and inconstant and after a seconds it shuts down

[otohellup]

Hey there , i have some trouble with my car bmw320d with the vp44 pump. I think the Vp44 fuel temperature sensor is faulty but i dont know where it is located .Please give me some info about this fuel temperature sensor .
Thank you!


According to BMW, the fuel temperature sensor is integrated in the injection pump. It cannot be replaced separately.
The fuel temperature influences calculation of the injection volume.
Fault code 23 "fuel temperature sensor" is stored if the fuel temperature sensor is defective.

[Archibald]

According to BMW, the fuel temperature sensor is integrated in the injection pump. It cannot be replaced separately.
The fuel temperature influences calculation of the injection volume.
Fault code 23 "fuel temperature sensor" is stored if the fuel temperature sensor is defective.
I think it's mountede on the side and sure, BMW and Bosch want to replace whole pump, but I am quite sure it can be replaced (some soldering required thought)

[nomisum]

Courtesy of Drivergabriel...He's a Giver now...:flowers:
are u a disel fuel pump specialist?

[ricampr]

very good topic.
thanks

[rsmtechnicians]

howcan i obtain this infomation?
by asking for the

password please!

thanks!

[rsmtechnicians]

howcan i obtain this infomation?
by asking for the

password please!

thanks!

[angmar]

Hello friends I have ford focus with vp44 with failures p1564 and p0167. Somebody can help this problem.
B.R.

[BeianM]

Hello friends I have ford focus with vp44 with failures p1564 and p0167. Somebody can help this problem.
B.R.
P1564 FIP (Fuel Injection Pump) requesting reduced fuelling mode
P0167 O2 Sensor Heater Circuit Malfunction
Check that the o2 sensor is getting its heater feed & associated circuits, fuse/relay.

[treo]

You must fix the injection pump.

[Passat31]

audi a6 , i think it is pumpproblem. i check engine fault codes (vag-com), nothing.
how i can test the pump?

[carbyvw]

I have astra with vp44 pump 2003year.The error is:
P0149-injection timing control circuit malfunction.
what is problem?? ecu, pump or mecanic error?
thanks for any help

[mortenmorten]

I have astra with vp44 pump 2003year.The error is:
P0149-injection timing control circuit malfunction.
what is problem?? ecu, pump or mecanic error?
thanks for any help

Most likely electric/electronic IMHO, as 99% of the VP44 errors are electronic.

[astraquattro]

Hi, i am new to this forum and i need to repair my VP44 EDC, can you tell me where to find the instructions and parts needed to do this please

[astraquattro]

1? post !!!!
Read this ;http://www.digital-kaos.co.uk/forums/f2/you-please-read-before-posting-1129/
Hi, i am new to this forum and i need to repair my VP44 EDC, can you tell me where to find the instructions and parts needed to do this please

[carbyvw]

what is IMHO?

[djwacik]

In My Humble Opinion

[darkwador21]

Very good post

Thank

[kasekasas]

hi all

this is all information how to change the broken transistor in VP44/45 .

best regards
Hi, maybe you can to send informacion how to repair vp44 to my email
thanks

[staind]

thank too much for this information

[beamer320]

hello there im new to this forum but im here to help and maybe get some help so here it goes first of all do not change the transistor on the pump as this is not the problem at all follow my advice and you will be free from starting problems or shut off wen warm so get a pen and paper you will need it al you need to do is replace the pick up sensor inside of the pump wich is just below the edc and takes reading of the pump main shaft this part as been recaled by bosch and stiil in invistigacion even the sales have been stoped until bosch updates that part the part number you need its 1467255103 from bosch this is called position sensor or loop sensor so stop playing with your edc as these are expensive and do not give problems that often by changing the transistor the only thing you do is amplify the signal from that sensor thats why the engine does not rev propeply hope this helps all of you any doubt's message me or give a ring to bosch tecnical centre for all of you that have change the transistor i'm sorry but or you put all as it was or by a new or used edc and then replace this sensor and the pump should be fine for another 100000 miles or more i wiil be posting a video of this replaceble part soon on youtube[twoo weeks or soo] :beer::beer::beer::beer::beer:

[zack1]

Thanks
Iam waiting for your video :top:

[beamer320]

im just waiting for the part to arrive from bosch then as soon iv got it ill post the vid but as i said they are cheking what goes wrong with this part so they have stock but the sales are suspended but i have fixed about 150 pumps like these by now so my advice is until i post the video do not play around whit the edc best to all :top::top::top::top::top:

[zack1]

im just waiting for the part to arrive from bosch then as soon iv got it ill post the vid but as i said they are cheking what goes wrong with this part so they have stock but the sales are suspended but i have fixed about 150 pumps like these by now so my advice is until i post the video do not play around whit the edc best to all :top::top::top::top::top:

Whats the price for the part att bosch ? and wher did you call ore order it ?

[omarbl]

this is a great post thanks

[zack1]

Whats the wrong code in obd when it is the transistor ? and whats the wrong code when it is the rotation angel sensor (1467255103) ?

[Anmed]

yesterday repaired. IRLR2905 was soldered in place using a faulty.
For soldering used IRDA Rework Station.

[beamer320]

Whats the price for the part att bosch ? and wher did you call ore order it ?
hello any good car spares will be able to sort the part for you i use dcs wich the part was 70 pounds it is paid for but still waiting for bosch to release sales hope it helps:rolleyes:

[beamer320]

Whats the wrong code in obd when it is the transistor ? and whats the wrong code when it is the rotation angel sensor (1467255103) ?
the code will come up as the pump itself as long as other error codes but these other ones will clear because wen this part fails all the other will report failing because they need these one to work like the advance and retarding valve solenoids they will not work so not enough fuel is getting to the injectores plus there is no code for the transistor itself as it is part of the edc the transistor needs to be chek with a multimeter for broken circuit so once again do not play with the edc or you will regreat because if you change the transistor the car will work but for how long? and the engine will not work propely better to wait then try dodgy fixings :rolleyes::rolleyes::rolleyes::rolleyes::rolleyes:

[Craig in Spain]

Hi Beamer 320, sounds like you know what your talking about.
I have my pump in bits as we speak.
I need to clarify something. You are saying it's the angle sensor that is faulty. However, if the transistor is blown, it won't work without being repaired first, therefore, are you saying fit a new ECM with angle sensor, if this is the situation? Or, replace faulty transistor and angle sensor?

[N7MOG]

I really would be interested in knowing if this diesel pump can be repaired instead of having to buy a Bosch "rebuilt" unit. I would think that it would be a less expensive option!

Bill

[paulus32]

picture
Does that way( in .pdf file ) of soldering works with irfz44n ???


Thanks will try this myself.

[paulus32]

im just waiting for the part to arrive from bosch then as soon iv got it ill post the vid but as i said they are cheking what goes wrong with this part so they have stock but the sales are suspended but i have fixed about 150 pumps like these by now so my advice is until i post the video do not play around whit the edc best to all :top::top::top::top::top:

Am looking forward to this video have you got the part yet??

[masterx584]

i guess this is the problem i was about to clear the gell away and picked the leg with a needle to see if any were broken and the whole plate with the legs still attached lifted up. now all i neeed to do is fix it there are several choices of transister on here which one is best

What is doing pin 3 of vp44 ?

[Dacrasy]

I want to buy an Opel Zafira 2.0 DI with a VP44 which is supposed to be out of order according Opel.
Can I repair it if I follow this topic?

[mustata.razvan]

I have the same problem faced by all members. car stops and starts after a good while after. after scan result error sensor rpm sensor is located in the pump or leaflets, I hope a fellow guide from romania have a bmw e 46 320d with vp 44

[cristi_bv]

The sensor is inside the pump.

[Dacrasy]

I am in France and I want to know if anybody knows a website where I could order BOSCH parts (for ex : angle of rotation sensor or solenoid)?
Thanks.

[fluorescent]

One question:
why dont put the original transistor?:
B?squeda de productos | Farnell Espa?a (http://es.farnell.com/jsp/search/browse.jsp;jsessionid=0WBACXATODRN0CQLCIPZNFQ?N=0&Ntk=gensearch_001&Ntt=FDB44N25&Ntx=mode+matchallpartial&suggestions=false&ref=globalsearch&_requestid=1567163)
Its much smaller and is original one.

[jose70]

It's not a secret a long time ago :)
Little review from VP pumps and couple diagnostic programm for this,works with K-line interface.
Thanks from Spain:thrasher:

[ouzosoft]

yes! read:

BMW: you can swap the pump and after that you can syncronize-it with inpa!

OPEL: just ,,plug and play'' (from opel to opel)

AUDI: just ,,plug and play'' (from audi to audi)

FORD: i am not sure

SAAB: just ,,plug and play''


FORD fu*ks u anyway, for me it's third time in 2 year that i'm fixing the pump in sum it is 1.5k euros. and i burns again. mf. Bosch S*ck high..

[hector]

FORD fu*ks u anyway, for me it's third time in 2 year that i'm fixing the pump in sum it is 1.5k euros. and i burns again. mf. Bosch S*ck high..
Hello guys.
I've a 9 units to FDB44N25.
If somenone is interested, to ask for it.
It's is Spain.
Thanks

[mustata.razvan]

I just finished and you're right cristi_bv disassembled pump is connected inside her EDC. sensor question is coming separately? where it can I purchase?:rock:

[Dacrasy]

I am interesting in it also.
Where can I purchase this sensor?
Thanks.

[autocargo]

hello there im new to this forum but im here to help and maybe get some help so here it goes first of all do not change the transistor on the pump as this is not the problem at all follow my advice and you will be free from starting problems or shut off wen warm so get a pen and paper you will need it al you need to do is replace the pick up sensor inside of the pump wich is just below the edc and takes reading of the pump main shaft this part as been recaled by bosch and stiil in invistigacion even the sales have been stoped until bosch updates that part the part number you need its 1467255103 from bosch this is called position sensor or loop sensor so stop playing with your edc as these are expensive and do not give problems that often by changing the transistor the only thing you do is amplify the signal from that sensor thats why the engine does not rev propeply hope this helps all of you any doubt's message me or give a ring to bosch tecnical centre for all of you that have change the transistor i'm sorry but or you put all as it was or by a new or used edc and then replace this sensor and the pump should be fine for another 100000 miles or more i wiil be posting a video of this replaceble part soon on youtube[twoo weeks or soo] :beer::beer::beer::beer::beer:

hello beamer320, we are all awaiting the video you promised :ridinghorse:

[dee67]

Hi, Beamer320, I've read your post regarding VP44 pump with great interest. Just like to know how your investigation getting on so far? Also, you say you have repaired many of these pumps, with what components? transistor? pick-up?.
The problem I have is that my astra 2.0di (99T) stopped all of sudden and the only way I can start it, is by squirting easy start, then to maintain it running I have to clamp completly the return pipe. I have checked all external air leak points. they are all ok. any clues? Thanks in advance.

[m3vuv]

Has anyone had any joy using the irf 540 for this job?,cheers Paul m3vuv

[darkwador21]

IRF 44N and IRF540 and IRLR2905 is not good for astra 2.0di

i wait Mos fet FDB44N25 for trying

[raykf]

picture
Does that way( in .pdf file ) of soldering works with irfz44n ???
Does the PDF include details on the position sensor output?
Ray

[Remi55]

Hi guys,
I found that the right transistor should be IRLU3705ZPBF. One user is selllng this for a few bucks with an instruction how to replace it.

He also wrote that just replacing the transistor isn't the key to success, because you have to find the reason why it has been damaged.

I have a Vp30 pump and I`m also worried about it .

[Dacrasy]

IRF 44N and IRF540 and IRLR2905 is not good for astra 2.0di

i wait Mos fet FDB44N25 for trying

FDB44N25 is the original Mosfet type. If it failed, that means it was not good designed (it is what I think).

Have you tried the IRFZ44N? It is the one which is advised in this topic (that's what I understood after reading these 25 pages)?

[Dacrasy]

Hi guys,
I found that the right transistor should be IRLU3705ZPBF. One user is selllng this for a few bucks with an instruction how to replace it.

He also wrote that just replacing the transistor isn't the key to success, because you have to find the reason why it has been damaged.

I have a Vp30 pump and I`m also worried about it .

You are right.
After hours and hours in different websites, I think that :
default codes 1630 & 1631 could be the Mosfet, the rotating sensor or the solenoid valve.
But most of the time, it is the Mosfet. It is better because it is the cheapest.
If after this repairing, it still doesn't work, you have to try to change the other components.

Have you tried IRLU3705ZPBF?

[icar]

some pics about it

[mariantv]

want transistor pump v44 opel

[esagoggo]

Thank you! :):bounce:

[darkwador21]

Dracasy, the irfz44n it does not take more than an hour

[jp_olli]

If anyone should need the rotation sensor I have two new ones to sell.

Send me PM if you want to know more details.

[ioanrokos]

hi all

this is all information how to change the broken transistor in VP44/45 .

best regards
Hi guys
I Have a BMW 320D 136 PS
Thank you all for the informations

[sim1234]

hi mate,i am interested in repairing these pumps if your kind enough to share knowlege.i am always in to exchanging information but not within a few miles if you get my meaning.i know there are issues with the little transistor thing in the top but is it a success when replaced i mean can you let the car go and not worry whether its going to break down?,anyway if the answers yes then if you can help i have a pump now i need to try it on which is a 0470504005 from a bmw 320d......thanks for reading

[mlking]

any news here? i have a ford focus that its vp44 is bleaching.

[assman]

is there methot to check out if rotation sensor is broken or not??? Or do you just try and see if it helps or not....

[ouzosoft]

http://translate.google.lt/translate?hl=lt&sl=lt&tl=en&u=http://www.lbm.lt/vp44.htm

it's Lithuanian firm's article about vp44, there's some good info about diagnosing electronic faults, by the way prices in the end of the article is in Litas not $, Google some why translate LT to $. 1$~=2.7LT

[best_gsmdany]

I've yrfz44n repaired and injection pump for Audi A6 V6 car starts but does not accelerate. If you please help me with a solution thanks

[tooseyman]

Hi, is this same pump as used in astra 1.7dti (2003) with the edu module mounted on pump at rear of engine?

[stevan]

Can someone confirm that FDB44N25 is ok?

[saltrock]

Hi Guys,

Well I've tried soldering new fets etc, but still no joy. I'm now wondering about the possibility of replacing the pump with a mechanical pump from a Rover 200 or suchlike. Has anyone tried this or have any views on whether it would be possible? I'm not sure about the physical fit or whether there's any way to keep the engine management system happy... if one could be fitted (with throttle cable to the accelerator pedal) then what about emmisions when it comes to the MOT?

Anyhow, just a thought...

[best_gsmdany]

Hi, is this same pump as used in astra 1.7dti (2003) with the edu module mounted on pump at rear of engine?

computer is above the pump model

[tomas_s]

Thanks for the information. Is it possible that no fault codes are recorded if a pump failure accurs? i can see the pump speed in live data. the injection angle shows 0.0 when crankink. car doesn't start. BMW 320d.

[Remi55]

Hi Guys,

Well I've tried soldering new fets etc, but still no joy. I'm now wondering about the possibility of replacing the pump with a mechanical pump from a Rover 200 or suchlike. Has anyone tried this or have any views on whether it would be possible? I'm not sure about the physical fit or whether there's any way to keep the engine management system happy... if one could be fitted (with throttle cable to the accelerator pedal) then what about emmisions when it comes to the MOT?

Anyhow, just a thought...

It is possible but you have to get the ECU from a 220 SD model with the right wire-loom. The loom is the biggest problem.

I`ve got one SD engine in ma garage with the mechanical pump waiting for sale :bounce:

The idt engines in ROver got better Power with the right tuning of the ECU & MAF :p

[bobcoder]

how do i unzip this file?

[mervyna]

Great article. Has anybody looked at Farnells?

[borysgo2]

Hello.
From mine experience quite a lot of the transistor replacement pumps are coming back, there is a reason why the current going threw transistor is too big. Puting 40A transistor is like puting a bigger fuse, it works but repair is not 100% good.

[staff055]

hi everybody, I have a problem with my car, It is a Luv D max and It doesn't run.

Has anyone a pcb of EDC or scheme?

THANKS..

[staff055]

Can I exchange IRLZ44 for IRLR2505?

[Antony]

Have any of you had experience with VP44's fitted to nissan 3.0 turbo ZD30's? Im from a workshop in nz and it is very common for them to not start, with the pump being at fault, recon pump with ecu replacement being the fix. Cheers

[kamelingus]

hello,
thanks everybody for this forum
:bounce:

[narvalve]

I have same problem with opel 2.0di read all pages i ask myself its any here succesfully repair the pump?

[elav]

and to have a performance vp44.... can it be possible my 320d will love a high pressure vp44

[mervyna]

I have tried the IRFZ44N in my VP44 on my A4 2.5 TDI, but it went pop pretty quickly due to the tab shorting to the car earth, a shame because the engine was running OK. Now I have a problem in that (I think) the track to the gate pad has gone open circuit; does anybody know where the drive for the gate comes from?? Please help...

When I get the connection issue sorted I will try a MOSFET from NXP (Farnells) as this has a smaller footprint and should fit a bit easier giving a better heat transfer to the Drain, the pinouts mean that there is no "crossover" between Gate and Source. The part number is PSMN4R0-40YS, it can pass 100A and 106W and has a max Vds of 40V. I will report back on the result later this week.

Merv

[best_gsmdany]

00550 start of injrction regulation
17-00 control difference
can come from this error?

[mondis]

can anyone tell me how to test vp44 electronic of the pump with OBD connector. Is this possible? I need the wiring diagram (pins on OBD and vp44 ECU).

[mondis]

By the way great forum !!!

[misko_ser]

Hi, guys.
I read all the pages on this topic, and I`m still wondering...
I have 2000. Rover 25 with fried (i made a mistake and fried it :( ) injector pump electronic unit.
Is it possible to replace this unit by a working one from an used pump without re-flashing, since I think that the mechanic part is ok (the diagnostic said: P1251 Fuel quantity solenoid valve error)?
The electrical parameters of the solenoid are ok.

Best regards from Belgrade, Serbia

[del635]

Hi Guys,

Well I've tried soldering new fets etc, but still no joy. I'm now wondering about the possibility of replacing the pump with a mechanical pump from a Rover 200 or suchlike. Has anyone tried this or have any views on whether it would be possible? I'm not sure about the physical fit or whether there's any way to keep the engine management system happy... if one could be fitted (with throttle cable to the accelerator pedal) then what about emmisions when it comes to the MOT?

Anyhow, just a thought...
Yes a mechanical pump is easy, just look for a housing which does not use the electronic advance, you could 'make' a very good pump, emissions would be no problem at all as they are fully adjustable. I'll help ya if ya want info.

[vagdoctor]

very very good explinations how to change the irfz... ha ha ha! i don't understand nothing!!! and abot mechanical failure... is not my job! anyway thank you for your help!

Something for exchange....it is similar think with Bosch ABS modules, but probably already long known issue, although I haven't meet it here. Alu wires cuts, due to a vehicle vibrations. Can be solved with a soldering. I did couple still working projects, and a couple of them were "sacrifised" for knowledge.

Hope it helps to someone.
RGD

[Thorsten]

Hello all together,

i'm from germany and new here.
Great forum guys!

What experiences do you have with this repair method?
Does it last?

borysgo2 (http://www.digital-kaos.co.uk/forums/members/179096-borysgo2/) wrote, that is won't last, but he is the
only one.
Maybe he is one of the "commercial repairers" from
Poland and he fears that making the solution public
kills his business?

So how long do your repairs last since you fitted it
with new a transistor?

Thank you

Thorsten

[Xram]

Hello all together,

i'm from germany and new here.
Great forum guys!

What experiences do you have with this repair method?
Does it last?

borysgo2 (http://www.digital-kaos.co.uk/forums/members/179096-borysgo2/) wrote, that is won't last, but he is the
only one.
Maybe he is one of the "commercial repairers" from
Poland and he fears that making the solution public
kills his business?

So how long do your repairs last since you fitted it
with new a transistor?

Thank you

Thorsten

Get your point of making things a public solution may lose you business (as it will) however the great thing about this forum is you may loose on one front.... But you will gain on another knowledge is power at the end of the day (power is cash for your business ) so you help me and I help you. You may lose money one way but bet you didn't join this forum to help bet you were looking for help with a job most of us here don't need help just a pointer but we are all happy with the help im an engineer to trade though i have engineered engines (only thing i do) (34 now) since i was 16 a mechanic sees it as an engine... its a bit of metal to me with 4 holes in it... this forum is only here to help each other nobody is here for cash. folk here for cash will be bind by the mods etc

[Thorsten]

Yes, you are right.
And btw, not everybody with a faulty injection pump
is able to fix it even when he gets the guide.

I don't have a car with a faulty ip.
But I want to buy a astra dti and i've read about
the problems with the VP44 and that Opel wants
2600,- ? for a new one.

But thanks to the forum I now know that it can be
fixed cheaper.
So for me there is nothing against buying an astra.

Thank you guys.

[ruzhda]

:smokin:.......................................... .......

[R32Combat]

What pump deas a 02 focus have?

[Thorsten]

What pump deas a 02 focus have?

It's not a VP44, it's a Siemens.
And they have always mechanical damages.
(metal shavings from the hoses in the pump)

Sorry

[john7779]

Hi, I need to know if the timing solenoid for a Ford Transit VP30 will fit the VP30 on a 2001 Rover 45, I know this thread is talking about VP44 but I think that these two pumps are almost identical, any help greatly appreciated,John,,,

[saltrock]

As it turns out, someone has just given me a vp44 on which the timing solenoid had gone (the one on mines fine) so I'm hoping to make a good complete unit. The only thing is I'm unsure if either pump has lost TDC! Any thoughts on resetting this without the expense of taking to a specialist?

[Mad_Sunday]

Can anyone point me to the info and equipment needed to check/flash the EDM on these pumps. I have a OBD2 test unit, can I use that?

Pete

[vitonen]

The pump cannot be reprogrammed/flashed by OBD2 equipment. Only fault codes can be chechked.

[nicamarcos]

Hi, I need to know if the timing solenoid for a Ford Transit VP30 will fit the VP30 on a 2001 Rover 45, I know this thread is talking about VP44 but I think that these two pumps are almost identical, any help greatly appreciated,John,,,

Yes, will work fine, also you can use timming solenoid from V44 without problems ;)

[nicamarcos]

Can anyone point me to the info and equipment needed to check/flash the EDM on these pumps. I have a OBD2 test unit, can I use that?

Pete

EDM for VP pumps do you mean?, it is named PSG5, not EDM, you need EPS 815 to flash it, an little expensive so far :).

[Mad_Sunday]

@ nicomarcus and vitonen

Can I use a Galletto interface with this pump? What software do I need.

Thanks, Pete

[nicamarcos]

@ nicomarcus and vitonen

Can I use a Galletto interface with this pump? What software do I need.

Thanks, Pete

For what you want use galletto in this VP?

[Mad_Sunday]

For what you want use galletto in this VP?

Virginizing it.

[nicamarcos]

:D Forget it..., PSG5 need more expensive equipment to do this job.

[Mad_Sunday]

:D Forget it..., PSG5 need more expensive equipment to do this job.

OK so what equipment would you recommend to use with PSG5 ?? and where can I get it ? Is there a "how to" for the virginizing process ?

Cheers, Pete.

[nicamarcos]

Pay attention to my last posts :), EPS 815 will do it.

[Mad_Sunday]

Pay attention to my last posts :), EPS 815 will do it.

Are you saying the only way is with a Bosch test rig?
I thought you guys were hackers!
Pete

[dragon17]

I have problem vith Opel Astra 2001 yahr wit bosh VP44

[nicamarcos]

Are you saying the only way is with a Bosch test rig?
I thought you guys were hackers!
Pete
Maybe not only way EPS 815, i told you this that i am sure work 100%.
My job isn`t hacking, maybe if you need hacking every that you will need in your workshop i think that you are at wrong job :).

[Mad_Sunday]

Maybe not only way EPS 815, i told you this that i am sure work 100%.
My job isn`t hacking, maybe if you need hacking every that you will need in your workshop i think that you are at wrong job :).

This is not my job (well not for the last 30 years when it was DPA, Minimec and CAV NN type pumps) it's an interest only now, I don't want to do this every day!

Pete

[dimitar22]

hello, i have a question, i just scan an isuzu 3.0 dmax truck, it have a problem sometimes the car works fine, but sundenly start to failt and blow whitesmoke and almost shitoff, i read the ecu with an launch scanner a say p0006, somethig about the returning valve, or something like that, thereturn fuel when the engine failt is poor, i need to shut off the engine for acouple of minutes an star ok but a few minutes later the problem star again, any idea?

Change the over flow valve.

[nicamarcos]

I have problem vith Opel Astra 2001 yahr wit bosh VP44
We have here Opel Astra happy owner.

[farkihome]

Hi guys. I have Audi A4, BDG V6 2.5 TDI (2005) and have a problem with my car. Engine has about 150.000 km. When I drive on highway at constant 130 km/h and then I give full throttle (6st gear), car starts to accelerate and immediately after this the car don't accelerate fully for approx. 1 second and then everything is ok. After cleaning the MAF and changing air filter I think it's not so visible but still not accelerating perfectly. Any ideas what it can be? Thank u.

[djgoku26]

Hello :) !

I have a big problem with a astra G y20dtl with a bosch PSG5(VP44 distributor) and the fault code P1660!
This fault code talk of one shut off sol?noid???
I can find it!

Any have a id?a?

Thank's for all!

[gomp]

thankkssss

[extra]

Thank you.

[henryfabu]

Thank you very much,
My vp44 inyection pump is broken and I thing that it the transistor who died.
The motor stopped and before was going very well.

[chemita]

Thank you so much. My bimmer is live now.

[henryfabu]

Thank you so much. My bimmer is live now.
Hello,
Please, which transistor did you use?
Can somebody recomend which is the most apropiate transistor for a bmw 320 vp44 pump?
I have several transistor models and I am not 100% sure from which choose:
IRF540
FDB44n25
IRLR2905PBF
IRFZ44
IRLR2905

Thank you very much

[gard1ner]

Thank you for this information

[jacksto]

This is very usefull forum. Thnk you very much for all information.

[Archibald]

It's not a VP44, it's a Siemens.
And they have always mechanical damages.
(metal shavings from the hoses in the pump)

Sorry
Not Siemens but Delphi and its soft pump bedding that fails and generates swarf that blockes injectors

[focusonly]

Fascinating posts....
Is it possible to substitute a Bosch 0470004007 for a 0470004002? Or indeed a -4006, -4008 ??

Thanks for any replies,

Conway

[Archibald]

Fascinating posts....
Is it possible to substitute a Bosch 0470004007 for a 0470004002? Or indeed a -4006, -4008 ??

Thanks for any replies,

Conway
02 and 07 are interchangeable.
Same with 06 and 08 (Ford)

[conti]

Hello. It is possible to use a transistor IRF 3205?

[coulthard123]

yes it is, i have made 2 pumps with 3205!

[jrok]

picture
Does that way( in .pdf file ) of soldering works with irfz44n ???


i cant download form the site. how can i get pdf files to Bosch VP30 VP44 injection pump repair solution??

thx

[peppery]

i use IRFP064N, but for FORD pump dont work good

[dimitar22]

i cant download form the site. how can i get pdf files to Bosch VP30 VP44 injection pump repair solution??

thx


Read the rules in the first post you should introduce your self not ask for something.

[joeimmo]

I took some time reading through as much information as I could before removing the VP44 electronics from the injector pump a week ago. I have a 1999 Dodge Ram with 5.9 Cummins engine. I got the dreaded dead pedal after which it would only idle erratically if it started at all. I retrieved OBD codes P251, P1688, and P252. I removed the electronics and gave it to an electrical friend who has experience with this kind of stuff. He replaced the transistor with an IRLR2905PBF and I put it all back together. I erased all codes. The truck started and I was able to drive around the block until I got to the highway, as soon as I hit the pedal to go faster than 30mph something popped and I was back to dead pedal again with the same 3 codes. I removed the electronics once more and my electronics friend realized the transistor fried because it popped off of the epoxy. He removed it and put a new one on, this time he made sure to mix the epoxy well and waited 2 days before giving it back to me. I put it all back together but this time the truck won't start and it gives me 2 of the same code: P1689. I cannot clear these 2 identical codes and cannot get the truck to fire at all. I have checked the wiring from FPCM to ECM as well as power and ground, all is perfect,
I also checked the resistances with a fluke DVOM across the wires I had to cut to take off the electronics: I measure 9.4 ohms across the smaller gauge wires and 0.3 ohm across the larger gauge wires.
Does this sound about right? I'm guessing something must have gotten messed up on the injector pump electronics the second time around. Does anyone have any advice/help to offer?

[rappttor]

irf3025 it doesnt work also on opel vp pomps

[cristi_bv]

IRF 3205 works on audi 150bhp engine and for opel vp44.

[mdou]

Hi guys. I have Audi A4, BDG V6 2.5 TDI (2005) and have a problem with my car. Engine has about 150.000 km. When I drive on highway at constant 130 km/h and then I give full throttle (6st gear), car starts to accelerate and immediately after this the car don't accelerate fully for approx. 1 second and then everything is ok. After cleaning the MAF and changing air filter I think it's not so visible but still not accelerating perfectly. Any ideas what it can be? Thank u.
No response possible without pc diag cnnecting in your car
Retry with it.

[joeimmo]

As a follow up to my previous email I ended up removing the vp44 and taking it to a bosch certified rebuilder. The pump ended up being the original pump that came on my truck back in early 1999 (approaching 180,000 miles). They offered to disassemble the pump for me which I consented to as I was curious as to the condition of the internals. The main pressure piston was badly scored and the ring had a crack all the way through from OD to ID. The truck hadn't run well since I bought it used, the pump was worn out from the first day I drove it home with 170,000 miles. The rebuilt unit has upgraded electronics, an internal steel sleeve, as well as all the other updates bosch has made to these pumps over the years. I think the transistor repair did work but the bottom line is electronic repairs won't fix a mechanically worn out/damaged unit. I get a 1 year warranty on this pump, if it breaks after that with under 100,000 miles I will try this transistor repair again. Thank you for all the help Driver Gabriel.

[dashtec]

is this complete solution, replace transistor,

[ljsrnjak]

hi m8, cheers from Slovenia
Same audi problems with VP37

[stevan]

So can anyone give info what FET is best for replace?
IRF540
FDB44n25
IRLR2905PBF
IRFZ44
IRLR2905
IRF3205

[fethi usta]

teşekk?rler

[stevan]

teşekk?rler ?????????

[tesla001]

thank you very much dear friends
good and useful topic and messages

[supershamy]

thanks this is very importan for me

[Poptest]

is this complete solution, replace transistor,

Transistor failure is not the only problem on VP44 pumps. From my experience, most common problems of this pump are:


angle encoder sensor
timing control valve
blocked fuel passages on the pump housing
wear on the timing device piston and housing bore
drive shaft oil seal
and many more

Good luck!!!

[kualo]

password please!

many thanks

[Poptest]

Hello guys,

We have been repairing VP44 pumps for ten years. Good ECUs are sometimes replaced just because the allowed programming maps have been used up by previous calibrations.

Does anyone know how to delete the existing maps on a VP44 ecu?

Please share.

[bazare]

for all those who are complaining about the difficulty to solder on the small square pad of the pcb, there is resistor in the middle of pcb where you can make the connection. just measure and check with a multimeter.

[Poptest]

I can't solder the small wires inside.

How can we solder?

What is the material, aluminum or stainless?

[toms4]

How can we solder?
Use a flux for Al

[hector]

You can to use, Alusol

MULTICORE (SOLDER)|629443|HILO DE SOLDAR, ALUSOL, 0.91mm | Farnell Espa?a (http://es.farnell.com/multicore-solder/629443/hilo-de-soldar-alusol-0-91mm-500g/dp/629443)

[Poptest]

You can to use, Alusol

MULTICORE (SOLDER)|629443|HILO DE SOLDAR, ALUSOL, 0.91mm | Farnell Espa?a (http://es.farnell.com/multicore-solder/629443/hilo-de-soldar-alusol-0-91mm-500g/dp/629443)

Thank you much Hector.

[mishu_b]

I need your support about this topic:
what device is it? and what value has?

sorry for using gabriel picture.

best regards!

[jonniebravo]

It looks like capacitor, you can remove it and measure with digital multimeter

[mishu_b]

...
I have already measured ~3nF.
anyone else could confirm the value?

best regards

[tomaszcz]

For ALL:



YouTube - VP44 NPARAWA

[mishu_b]

...
question:

From where can I find the schematic for this pump?
many thanks in advance for your help.

best regards!

[SHPETIM]

do u mean internal wiring or what?

[mishu_b]

...
yes, internal electrical wiring (schematic)

best regards!

[autocentarvu]

I have here one pump from Opel/Vauxhall Vectra B,2.0 DTI.
I allready changed broken transistor but car don't want to start.
Erorrs are P1630 and P1631.
What next?
Any advice,experience...?

Thanks in advance

Best regards

[Poptest]

Pump has a faulty control unit. Best way is to have it serviced by a Bosch Diesel Center, but it may be expensive.

[babaroga]

Can a help to replace transistor for error code p1220 ?

[Poptest]

P1220 a timing deviation fault on the VP44 pump. The only thing you can do is to replace fuel filter, and/or check if air is being pulled into the system. If this doesn't fix the P1220 fault, pump has to be rebuilt.

[LudwigPT]

Great solution. Thanks everyone for share some good information that helps us to save a lot of money.

Greetings from Portugal!

:)

[driveryosef]

Hi,

Many thanks Gabriel, we have replace the MOS FET on the pump and it works !
but the car start and stop after 10 minutes; we think it's another problem now, we are investigating.
So, you're the best Mr. Gabriel

Regards,
Youssef from Morocco

[Poptest]

Hi,

Many thanks Gabriel, we have replace the MOS FET on the pump and it works !
but the car start and stop after 10 minutes; we think it's another problem now, we are investigating.
So, you're the best Mr. Gabriel

Regards,
Youssef from Morocco

Any DTCs logged?

[draky69]

thanks for the contribution

[sofix]

I need your support about this topic:
what device is it? and what value has?

sorry for using gabriel picture.

best regards!

this capacitor is wired to gate broken transistor

[driveryosef]

Hi,
I don't have DTC function in my car (ford focus 1.8 tddi 90CH)

[Poptest]

Hi,
I don't have DTC function in my car (ford focus 1.8 tddi 90CH)

DTC = Diagnostic Trouble Code or fault code

[driveryosef]

thank you poptest for information, so my pump does'nt work anymore and i think the pump is definitely died now after attempt to repair it ;)
I have a question : can I replace just the electonic box of my pump without reprogramming the ECU ?

[driveryosef]

hello,
can I replace just the electonic box of my pump without reprogramming the ECU ?
regards

[jovanichef]

please help my !
type tranzistor VP44 ford !
pls

[Poptest]

hello,
can I replace just the electonic box of my pump without reprogramming the ECU ?
regards

This is not possible. A new PSG5 ECU is blank, no program inside. It is programmed during pump calibration. Timing is also electronically done after pump calibration.

[gazzagwire]

Hi, I think this may well be exactly what I need. If it is, I'm offering thanks number 62 in advance. :)

[gazzagwire]

Hmm, just digested all 33 pages of this post - it appears that I missed position 62 in the thank you queue a while ago!

I've got the usual starting problem on my Saab 9-5 2.2 tid, however it's a 2005 model. Does anyone know if the transistor fix is applicable to my car? I think the pump was revised around 2003.

Any advise greatfully received.

[niki85]

Hello all

Great forum,
Does anyone have faulty CAN communication between
PSG5 and ECU in Astra 2.0DTI ?
Problem is in the PSG5 because i try to put
PSG5 from another Astra and car was started and CAN work.
Also i change the transistor because car was work but
after 15min of drive car was died...

If someone have solution for fixing the problem
please help me or exchange for something ...

Thanks

[stefan]

For ALL:


YouTube - VP44 NPARAWA (http://www.youtube.com/watch?v=UiJ-13vldWg)

what type of thermal conductor paste (and for sticking) is there, under transistor?

[user9994]

I want to see the Pictures because mine is not good

[dolores]

Hi everybody,

I repaired this like described, I'm electronic technician, I can tell you it's very hard to sold on ceramic board
The point for gate Mosfet is really small and like me if you scratched too much for try to sold ...:boring:
An another point to sold it
Here, on the capacity side :

http://img227.imageshack.us/img227/3402/otherpoint.jpg (http://img227.imageshack.us/i/otherpoint.jpg/)

[bazare]

be carefull on soldering on that capacitor. If you heat it just a second to much it will desolder completely from both ends.

[viejovizcacha]

Help!!! how see the pics? Sorry my bad english

[kikimiki]

And how you test the pump after doeing that repair ?
Before you put it in the car, you have to test it on diesel bench..., to see fuel delivery, rpm, advance, etc.
Someone knows software for testing vp44/30 on regular test bench ????

[lituzz]

hey mate... check this out:
diesel fuel injection pump test stand / diesel fuel injection pump test bench/Common rail injector test bench/EDC (http://www.nantai-china.com/english/image_detail.asp?id=340&class_id=44)

I'll buy this equipment next month, by now I cant guarantee its work but Ill take the risk and will comment when done.

[mishu_b]

thank you poptest for information, so my pump does'nt work anymore and i think the pump is definitely died now after attempt to repair it ;)
I have a question : can I replace just the electonic box of my pump without reprogramming the ECU ?

please, what car do you mean?

if it is Opel, yes you can - I've tested and it working without reprogramming.

regards

[expresscar]

vp 44 irf 3803 ok
IRF540 is not good,car works at 3000 rpm ,no more.
3803 works great with :audi,seat,bmw,ford,nisan,opel,vw and more.

[kikimiki]

hey mate... check this out:
diesel fuel injection pump test stand / diesel fuel injection pump test bench/Common rail injector test bench/EDC (http://www.nantai-china.com/english/image_detail.asp?id=340&class_id=44)

I'll buy this equipment next month, by now I cant guarantee its work but Ill take the risk and will comment when done.

I think you cant test pump via PSG5 with this eqipment..You can test mechanical and the work of the solenoid valves, BUT you cant drive pump via the CAN line, so you cant test PSG5 electronics.
For the testing/simulating pump via CAN line, just like bosch 815 bench, we are now making software wich will work with specific hardware interface.It will test just like the bosch 815 rig, only with out programing.We will be ready after about two months, there is a lot of programing job to be done....