E90 330d problem

[kop]

I have a 2005 bmw e90 330d msport. A few days ago the car started and ran for a few minutes and then died. It would then crank but not start. i ran a check with a diagnostic machine and it showed low fuel pressure at rail. I checked fuses and found a 20amp fuse for fuel pump blown. Changed fuse and car started for about 5 seconds and fuse went again. I have now removed the back seats and found the fuel control relay which is a box around the size of a pack of 20 fags and this is completely burnt out. I have opened it up and its just black and burnt on the board. Anyway i have purchased a new one from the dealers but when i plug it in the car just cranks but will not start. Does this module need programming to the car? Also before i changed this module as soon as the car cranked the fuse blew but now the fuse does not blow. All advice appreciated.

[turbo965]

i would say it needs some sort of coding to the car.

[sinkyford]

FP relay won't need codeing. Go for your basics, fuel pressure meter check,dvm and amp load on pump draw,flotsom in tank or petrol.Is vehicle multi user, I'm only putting in a litre of fuel, my responsibility is low.
Tell customer to be honest with detail it could save you time and him money. Can we assume you have no fault codes since fit?

[kop]

Just checked the car again. No codes stored. I have checked at the fuel pump control module and there is power there. From this module there are a pair of thick twisted cable going to the pump. One of these wires is a ground. On the other wire if i feed 12 volts the pump starts going. I am sure that the fuel pump control module needs coding and it is simply not sending power to the pump. Any ideas. I have a autoboss v30 but i dont think this allowsme to code. Anyone in birmingham with an autologic?

[Ashraf6119]

Hi

I don't think if the Fuel Pump Relay ever needs coding.

Have you asked your local dealer if it needs any coding.

Also are you sure its Fuel Pump Relay.

Did you check why did this relay burnt in first place before replacing new one.


Ash

[Ashraf6119]

Hi

I don't think if the Fuel Pump Relay ever needs coding.

Have you asked your local dealer if it needs any coding.

Also are you sure its Fuel Pump Relay.

Did you check why did this relay burnt in first place before replacing new one.


Ash

[kop]

Just been told by a lad who works at Bmw that it definately needs coding. The old unit had a capacitor in it which was completely burnt out. I had the fuel pump out and there was no problem with it. The car had been standing for a month or so and i suspect condensation on the board caused the tracks to short.

[sinkyford]

Think clearly, dealer says coded, "accountant/ bean counter speak" thats why your in here ,be suspicious. You say pump no problem, how did you pressure test, with a meter ?
If you have replaced relay, you are still looking for the problem. You are asking for someone with autologic, we have autologic, but if you have no fault codes, think plumbing or breathing.

do not thank me ,i know my own importance.
i'm a nobody always listening.
i

[loisicar]

simply check if th fuel arrive in final stage in engine

with high pressure if , just dissamble and put in plastic botle and see if not ok and no have fuel the problem is from relay or pump or fuel filter

if have fuel and crank car no start

must make synchronisation between CAS and DDE
with GT1 BMW scanner

[lolo.lolo]

hi

u must code the new fuel pump module (needs vin and other stuff).

have fun!

[kevfield]

I had a e65 with 3 module,s in the boot that had ended up wet all i did was buy new and swap chips from old to new you could give it a go you have nowt to lose.

Thanks kev

[kop]

Sinkyford i have no idea what your talking about lol. For all who are asking how i checked fuel pump i used a meter and there is no power getting to the pump. No ned to check fuel pressure as there is none. I need to get the module coded to the car. I have thought about stripping the two modules and making one good one out of them but if this fails then a replacement is ?160. I have found a lad who has bmw dealer tool but he cannot code iy until next saturday so if there is anyone local to birmingham let me know pls.

[loisicar]

fuel module no need coding
the command or relay pump becomes from DDE ( ecu negine ) , you can put any fuel module even used from other car
check the pump fuse in rear car.

12 v on pump activate when crank ,
test pump with outside 12 v

[lolo.lolo]

fuel module no need coding
the command or relay pump becomes from DDE ( ecu negine ) , you can put any fuel module even used from other car
check the pump fuse in rear car.

12 v on pump activate when crank ,
test pump with outside 12 v

hi

are u sure?

please see TIS docu no. 1614500

is not a relay!!!! is an ECU ... fuel pump has variable rpm... and need to be coded on the car!

next time u try to help please verify your infos first.


have fun!

[Poptest]

hi

are u sure?

please see TIS docu no. 1614500

is not a relay!!!! is an ECU ... fuel pump has variable rpm... and need to be coded on the car!

next time u try to help please verify your infos first.


have fun!

lo.lo is correct. Pump speed is controlled by fuel pump control unit which has to be initialized by a BMW service dealer.

[cammy25]

Its true but......

its not fully rpm controlled, only 4 static stages. If you send command for activation with INPA, DIS or whatever (even X431 can do), coding is not necessary. For normal functioning it is.

[loisicar]

you are right lolo the new EKP needs to be coded
but used one from any E90 no need to be coded , im sure and work ok
sorry

[kop]

I have an autoboss v30. Will this do the job cammy25 or anyone else?

[cammy25]

For coding not. I ment that x431 " activate pump" comand has in actuation list. No idea if autoboss has that too.
This way you can check if pump or ekp is ok.
Plug out The fuel line under the bonnet wich Goes to high pressure pump and test pump by actuation. You wil see zoon enough if it works. Pressure is like 4 bar.

[lolo.lolo]

you are right lolo the new EKP needs to be coded
but used one from any E90 no need to be coded , im sure and work ok
sorry


hi

yes.."one"...exactly the E90 M3 :)
and in some cases ...is a soft bug....module contains VIN ...but if u take a used one from a similar car it may work.
for coding the pump module use NCS.

have fun!