Re: fellow m30 problems

["Ron J" <ron@xxxxxxxxxxxxxxx>]

It's most likely a sticky Idle air control valve or ICV.. I dont know where
that would be located on an 89.. , but here is a pic of the ICV on an 85
which also has the M30 in it.. Mine did the same thing jumping idle.. Take
it off, clean it with carb cleaner, and a thin brush to remove the deposits,
then reinstall it.  If that solves the problem.. look into getting a new one
soon..

Cheers
Ron Jordan
85 535i
73 911s 2.7

www.geocities.com/tatsu911
my E28 Home page..
- ----- Original Message -----
From: "W. B. Gerard" <wbgerard@domain.elided>
To: <ron@domain.elided>
Sent: Wednesday, October 23, 2002 9:33 AM
Subject: fellow m30 problems


> Hello -- I have an 89 535 with similar jumping tach issues.  Usually
> cold, the car will rev itself between 200 and 1500 rpm at stoplights
> (which is more ridiculous-sounding with the B&B muffler).
>
> I've read your posting with great interest.  Did you resolve the problem
> with swapping out the FPR?  I suspect that may be my issue as well,
> perhaps because I swapped out to an aftermarket unit 6 yrs ago--maybe
> it's time has come.
>
> best,
> Blake
>
> 89 535 135k

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