I cured this problem by replacing the idle stabilizer unit.

Dane Tessler
87 Westfalia 138K
Treasure Island, FL
http://members.aol.com/Dane714/westfalia.html
-----Original Message-----
From: John H. Rodgers <inua@QUICKLINK.NET>
To: Vanagon@VANAGON.COM <Vanagon@VANAGON.COM>
Date: Saturday, October 03, 1998 6:42 PM
Subject: Fast Idle

>-- [ From: John H. Rodgers * EMC.Ver #2.5.02 ] --
>
>My '88 GL is idling at 1900/2000 rpm. Once in a while it will slowly slide
>back to about 900/1000, in a few minutes it will rise back up to 1900/2000.
>
>Any Ideas?
>
>Thanks,
>
>John Rdogers
>'88 GL Driver
>--
>