Engine Light + Tractor Idle - Help

[phat///M3]

Diagnostic points to intake camshaft sensor, and has logged a misfire on all cylinders.

Before that there were more codes (including cats, misfire and camshaft sensor) some of them must have been from when I disconnected the coils, so the garage suggested to clear the codes and to drive the car to see if the fault would come back.

At first no engine light but the car was still idling like a pig, let the car idle a bit on the 10 min "test" drive, turned it on and off 2 times or so, and the idle was back to normal car also felt a lot better and quicker to respond.

Read the codes and it said misfire on all cylindres (would think this is from before the idle went back to normal) and intake camshaft sensor.

The garage said that it also registered exhaust camshaft sensor before the test drive but I personally didnt see that, so they say best to change both out when the code/light comes back.

Car drove fine on the 15 min drive back home.

What do you suggest as it will cost around 300 Euros to swap out both sensors?

[phat///M3]

Drove the car today and for the moment no sign of the fault and it runs as it did before (touch wood).

[shimmy]

[phat///M3]

Thanks Shimmy :thumbs:

BTW where are the pics of your steering wheel :banghead:

[shimmy]

Thanks Shimmy :thumbs:

BTW where are the pics of your steering wheel :banghead:

dont mention it!

see other thread

[phat///M3]

I guess I shouldnt have asked for the pics in this thread, as its all going to go downhill from here and now I wont get a serious answer or advice on the car.

[shimmy]

sorted

[phat///M3]

sorted

I was kidding Shimmy, but will have a look at the other thread now.

[Nords]

Just my sort of thing!

[shimmy]

far too compicated for you matey :thumbs:]

du bist ein 'deskjockey'

[phat///M3]

I took the car out the other day and it was running fine again no CEL and no rough idle, ever since the codes were cleared and I turned the car on and off a couple of times it has been back to normal.
Shimmy has worried me with his bomb pic :banghead:

[mattCSLnut]

Shimmy has worried me with his bomb pic :banghead:

... it what he does best :whistle:

[shimmy]

... it what he does best :whistle:

[phat///M3]

Car is still running normally, could bad/dirty fuel have caused this issue to come up?

[cantfind1]

You could also look at the throttle position sensors there are three on the CSL in the engine and two on the normal M3 engine.

On the CSL one is located at the end of the throttle bodies, the other is located under the intake plenum, and the other is located on the airbox beside the flap.

They are all the same part and part number. It is part number 2 in this diagram. Part number is 13637840383

http://www.realoem.com/bmw/showparts.do?model=BL92&mospid=47621&btnr=13_0911&hg=13&fg=15

There is also a Throttle Position Sensor in your pedal in the car. Now diagnosing which one is playing up is another matter!

These can cause erratic idle and jerkiness while driving along with a host of other problems. worth looking into this definitely.

Good luck for now.

If it blows up let me know!
:thumbs: