>Your first problem may be the well known, but perhaps poorly understood
>problem that many water cooled Vanagons have.  The way to know for sure is
>to stop when the problem starts to occur, turn off the engine, immediately
>re-start the engine and continue driving.  If the problem has cleared up,
>you have the well known problem.
>
>I just told you what the work around is.  There is a wiring harness fix
>available from VW for $200(?).  Also, other folks have found a fix by
>adding a few parts to the computer or wiring harness.  Perhaps someone else 

>on this list can point you to server that holds the extensive discussion on 

>this subject.
>
>I use the work around.

Volkswagen does it... again!     :^)