I have posted this same issue about a year ago when I installed an AC system
in my doka.

The idle steps up properly (as it should, about 200 RPM) until the engine
warms up. Once the engine warms up the idle gradually increases and "floats"
around 2K RPM.

I was unable to resolve it by replacing mechanical parts. For now, I just
have the wire disconnected at the AC Compressor and that is "livable" for
me.

If you find the solution, let me know.

Kim
Tristar #7

-----Original Message-----
From: Vanagon Mailing List [mailto:vanagon@gerry.vanagon.com] On Behalf Of
John Rodgers
Sent: Wednesday, March 25, 2009 9:11 AM
To: vanagon@GERRY.VANAGON.COM
Subject: Re: Increased Idle Speed with A/C

Deke,

I don't have a solution for you directly, but the problem is tied to the
FI system somehow. Do you have a copy of the Digifant FI Service Manual.
Drop me a note off list if you would, please.

You problem prompted me to look at my FI manual, and some questions have
been raised in my mind, but I will put them in a different post so they
will be archived with a better subject line.

Good hunting, on this one.

John Rodgers
88 GL Driver

Deke Rivers wrote:
> I have an '86 Westy with A/C.  When I compressor engages the idle speed
> increases.  I understand that this is as it should be.  However, it now
> seems to be increasing to an excessive level.  In the past it went up
about
> 200 rpm's - from about 900 to 1,100.  Now it is going up about 1,000 rpm's
-
> from about 900 to 1,900.  Is this normal?  If not is there any way to
> adjust?
>
>
>
> Thanks
>
> Deke
>
>
>