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Discussion Starter #1
Erratic idling and engine stalls 200000miles new maf fuel filter air filter just about to check idle control valve can anyone advice me on how to clean properly and if it could something else plz ......... thanks
 

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Can you find somewhere with diagnostics?

If you see the RPM needle kicking about when stalling, it could be the crank sensor.
The cam position sensor also gives similar problems, but with less stalling.

Also look for tears in any rubber hoses where it may suck in air without measuring it first.
 

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Fault code p0171 suggesting air leak also code p0170 could be throttle body, crankcase breather o2 sensor.

At first it was only erratic idling on cold but it now even when hot and occationally it stalls on hot and cold engine. looked for air leaks but after a good inspection found nothing. any other ideas. thanks.
 

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MY 2001 318i se was behaving erratically and sounds something similar to what you have, it was my cam shaft position sensor, tiny little thing but quite expensive, perfect now though
 
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