Re: E30 idle problems

[Evan Arnerich <arnerich@xxxxxxxxxxxxxxx>]

Dog-n-Hog  wrote:

> I've got an idle problem (85 325e):
>   o Starts out cold at slightly high idle
>   o Idle increases to 1300 as engine warms up
>   o Once warmed up completely, it begins surging/cycling between
>      500 and 1300 RPM.
>
> I've already changed:
>   o Idle control module
>   o Water temperature sensor
>   o Fuel pressure regulator
>
> I've already checked/verified:
>   o Idle control valve
>   o Water temperature switch
>   o Throttle position switch
>   o Air flow meter
>   o All wiring to the ICM and ECU
>   o Fuel lines
>   o All vacuum and intake lines/hoses
>   o Oxygen sensor
>   o Engine speed and position sensors


Change the idle control valve. Make sure it's OEM (see
http://www.ultimategarage.com)

Evan
'87 325 (with new idle control valve and steady idle)

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