Jesse,

The ISCU's are known to fail.  One way to check is to remove the cover from
your unit and see if one or more of the components on the circuit board have
overheated.  The discoloration should be fairly obvious.

If you need one, I have new ($189.95) and used ($55) available.

Cheers,

Jeff
www.vanagonparts.com

-----Original Message-----
From: Vanagon Mailing List [mailto:vanagon@gerry.vanagon.com]On Behalf
Of jesse johnson
Sent: Sunday, February 22, 2004 1:04 PM
To: vanagon@GERRY.VANAGON.COM
Subject: Idle stabilizer control unit...? Do they go bad?

Hey All...
If you remember a while back.. i was having a problem with a rich
running... bad idle at startup problem. I never really figured out the
problem... went through all the usual trouble spots.. and well.. not
fix.
Upon reading the wiring diagram today for the fuel injection system...
I noticed that the Idle stabilizer unit is tied in with 4 major items..
that directly affect the problems i am having. They are the Coolant
Temp Sensor,Hall Sender,Power Steering Pump Switch and the Oxygen
Sensor. Well ok 5... and the idle stabilizer valve.
My question is this... Do the Idle Stabilizer Control Units ever go
bad? I pulled mine and cleaned the terminals... and no change.
Anyone had this go bad? And if so... what were the symptoms?
thanks everyone,
jesse
89 carat