Dreaded Camshaft Sensor

Message Topic Search Topic Options Post Reply Create New Topic Printable Version Translate Topic

   Well then...
I had the Inlet Camshaft Sensor replaced along with a vacum hose alongside. The diagnostic was also done and there were no faults showing.

But, the car is still running rough and still takes long to start up on ignition. There is a slight improvement in performance overall but I am beginning to think that there may be something else faulty.

When putting on the gas it just seems that the fuel is not getting through fast enough as if it was choking. When driving at above 70mph and I put my foot down the car jolts a little during the accelaration. Does anyone think that maybe the fuel pump maybe suspect. But would'nt any other fault have shown up in the diagnostic?

Author	Message Topic Search Topic Options Post Reply Create New Topic Printable Version Translate Topic
zayd55 Members Profile Send Private Message Find Members Posts Add to Buddy List Groupie Joined: 10-March-2005 Location: London Status: Offline Points: 62	Topic: Dreaded Camshaft Sensor Posted: 26-June-2006 at 20:37
	Well then... I had the Inlet Camshaft Sensor replaced along with a vacum hose alongside. The diagnostic was also done and there were no faults showing. But, the car is still running rough and still takes long to start up on ignition. There is a slight improvement in performance overall but I am beginning to think that there may be something else faulty. When putting on the gas it just seems that the fuel is not getting through fast enough as if it was choking. When driving at above 70mph and I put my foot down the car jolts a little during the accelaration. Does anyone think that maybe the fuel pump maybe suspect. But would'nt any other fault have shown up in the diagnostic?
	2000 E39 530i Sport Auto M54 Titan Silver

Sponsored Links

shaft Members Profile Send Private Message Find Members Posts Add to Buddy List Senior Member I Joined: 14-May-2006 Status: Offline Points: 130	Posted: 27-June-2006 at 00:02
	Could be few things fault with crank sensor, which does not always bring up faults, Also faulty ign coil or coils (breaking down under load), Engine wiring loom (which is a favourite) and throttle motor. Needs proper diagnosis at dealer or good BMW auotech garage.

oddball Members Profile Send Private Message Find Members Posts Visit Members Homepage Add to Buddy List Senior Member I Joined: 18-February-2005 Location: Shepperton Status: Offline Points: 112	Posted: 27-June-2006 at 12:44
	I had a similar problem on a very different vehicle (CBR 600) which turned out to be burnt wiring loom (caused by corrosion on a multiplug - high resistance - causing mini fire between legs - ouch!). One or more feedback wires to the ECU were damaged thus when the throttle position sensor feedback voltage got to a certain level the signal broke down tricking the ECU into thinking the bike was ticking over when it was running at about 5000 to 6000 RPM. Not terribly useful when your about to overtake something and need a little welly - not to mention slightly embarrassing. Open the throttle at some points and the bike would actually start to slow down!! As Shaft said - worth checking out the basic electrics.