High Idle on my BMW Z3 M44 engine

[Kenya]

Dear friends
My Car now had a high idle around 1000-1100 RPM which used to be around 700-800. Anyway to fix it?

I have replaced most of engine parts as follows and checked no air leak.


MAF
Idle control valve
Crank sensor
Comshaft sensor
Pressure regulator
spark plug

regards
Kenya

 

[jonco]

Have you done anything to the accelerator cable? They do stick with age as spiral wind deteriorates - bit of lubrication and exercise might help. You can always adjust the turn screw stop if you can't find anything obvious.