Lumpy idle?

[waveydavey]

My 325 has some problems with idling.

Its either hunting for idle or revving at 1k when I let it drop to idle at lights etc.

There's a bit of a pattern to it, but its not regular. After driving at normal speeds and revs when I dip the clutch it will rev at 1k, then gradually drop down until it starts hunting. But sometimes it stays at 1k, and others it just drops down and starts going up and down straight away.

I've been told it could be the idle control valve as when I unplug it, it makes no difference... but others have told me its the throttle position switch or air flow meter...

Any ideas would be very helpful.

[waveydavey]

Oops, I've just seen the 'sticky' article about this... Looks like that pretty much has everything covered.