This may not directly address your problem but make sure your throttle valve
switch is adjusted and operating properly.

Claudio Cella
87  Vanagon  GL   7 passenger
90   Jetta   TD

----- Original Message -----
From: "Chris Schaefer" <vanagon@1reality.org>
To: <vanagon@gerry.vanagon.com>
Sent: Saturday, September 07, 2002 7:46 PM
Subject: idle stabilizer problem....

> Hello folks:
>     I've got one for you.   I just bought an '87 w/ a waterboxer.  I'm
> not new to vanagons though, I had a very creaky I4 conversion for 5
> years.   So today as I prepare for my CA smog I decide to adjust the
> rather high idle down to something reasonable.   In the process I
> notice a disconnected wire, which turns out to lead to the idle
> stabilizer valve.  I plug it in and restart the van.   Now I have a
> "hunting" idle which runs the engine at about 2500-3000 (3-4 seconds)
> and then drops it down to 500-750 (1-2 seconds).   This is clear
> incorrect behavior.    So, what should I look for?  how should I
> proceed?
>
> -C-
>