When i start my car up, it never really idles right, sumtimes it does sumtimes it doesnt, but most of the time it nearly cuts out, then revs up again, then nearly cuts out, then revs up again, and so on. and sumtimes when im driving, and cuming up to a junction when im coming to a stop and have the clutch pressed it nearly cuts out to.
i changed the fuel pump as i had one spare and the one that was in car was quite noisy, but this did not effect the idling.
i was thinking possible air flow meter???? i cud be wrong any help appreciated.
Cheers
Not idling right on start up.
Moderator: martauto
Sounds very much like a vacuum leak.
If there are no tears in the air elbow (usual cause) check the oil filler cap and dipstick are sealing correctly.
Then check all the smaller hoses.
Then you can check the gaskets - either listen for whistling or spray carb cleaner when she's running and see if the idle improves any.
If there are no tears in the air elbow (usual cause) check the oil filler cap and dipstick are sealing correctly.
Then check all the smaller hoses.
Then you can check the gaskets - either listen for whistling or spray carb cleaner when she's running and see if the idle improves any.
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Morat
- E30 Zone Team Member
- Posts: 8943
- Joined: Thu Feb 09, 2006 11:00 pm
- Location: The Peoples Republic of Yorkshire
All the above are good points, one to add. If you have old/oily plugs (like me) then you'll get this idle as well. It could be worth whipping the plugs out to see what state they are in. My car has an M20 but I don't see why it would be different for an M40...
E30 Touring 0.35 cD - more slippery than prison soap 
Praise the Lard... and pass the dripping!
Praise the Lard... and pass the dripping!