Hard Start Problem Renault Megane II 1.5 DCi 2005 105 KM K9K 732

[snorg]

Hello Friends, can anyone tell me how can I solve this problem to my car?

Hard start



Memory Error:
P0340 Camshaft position sensor

I changed sensor but the error is not eliminated



Thank You

[autoden]

You must check timing, then look at the wiring and load test it.

[snorg]

...........

[snorg]

wiring check, is ok, how load test ?
and how to check synchronization?

[Autotecno2006]

Check live data, compare crank & cam readings ! Problem has to be Cam sensor , Timing , Wiring or Ecu !

[snorg]

sensor was replaced,
ecu was replaced
what program and under what name to read this data live?

[Dunker]

You really need to check wiring from CAM to ECU then if that's ok, check timing or scope CAM v CKP waveforms at the ECU. CAM sensor should have GND, 5v and signal out.

[snorg]

...............

[snorg]

Wirings is ok,
sorry, I'm a beginner
How program check timing ?

[sergei5005]

You need check camshaft belt in good state . P0340 Camshaft position sensor generally is for not sinchronize between Camshaft position sensor and CKP sensor. You engine is Out of point.

[snorg]

The belt has already been checked many times and is well positioned

[autoden]

Disconnect plug from ecu and sensor. Rig up a 12v bulb. Run 12v through each wire and it will light the bulb bright, if not, that wire has green rot.

[snorg]

I checked the cables with a light bulb, all are ok

[autoden]

The only thing left to do is get somone with scope. Then you see what ecu is seeing

[synkrotronic]

The information sent is to see with a scopemeter.
On sensors,if do not have scope i use a LED probe to not send wrong signal to ecu.
Like members said could be timing problem (camm,fuel pump,...).
Timing belt was changed before hard start problem?