unsettled idle

[mattyb]

when idleing warm it is quite unsettled and sounds like it is goin to stall but if i push the accelerator to make rpm 1000 it runs fine

any help would be much appreciated

[ed325i]

What engine ?

[mattyb]

alpina c2 2.5

[Brianmoooore]

A check of the operation of the throttle position switch is first on the list.

[mattyb]

any idea how i do this. only had car 2 days dnt know much bout it

cheers

[wiledw]

Check your air hose for splits and tears.

[stickupkid11]

i had the same problem, after speaking to a bmw expert he told me to adjust the airflow meter, i did so and all is good now.

[Brianmoooore]

i had the same problem, after speaking to a bmw expert he told me to adjust the airflow meter, i did so and all is good now.

Air meter bypass should never need adjusting. If you adjust it and it improves things, then you are just masking another fault.

[stickupkid11]

thats nice to know shame they didnt tell me that! looks like i need to find a new airflow meter.

[Brianmoooore]

In the real world, adjust it, and don't worry about it.
Needs to be set up on a CO meter, though.