Hard to tell if your symptoms match mine.  Sounds similar.

I just had the VW AFM harness modification done.  Fixed my bucking problem
on mt passes.

There's lots in the archives on how to roll your own capacitor hack.

Ty

-----Original Message-----
From: Vanagon Mailing List [mailto:vanagon@GERRY.VANAGON.COM]On Behalf
Of Tim Wise
Sent: Sunday, July 23, 2000 9:02 AM
To: vanagon@GERRY.VANAGON.COM
Subject: High altitude power loss

I just completed a trip to Yellowstone and back, driving lots through
the mountains. I had a funny power loss problem two times.

After driving a long downhill, where the engine was not really doing
much but idling, then starting up a climb, then engine would have a
serious power loss, to where I had to pull over to the side of the road.
Revving the engine, it sounded like it was missing, not running on all
cylinders, or just not getting the right fuel/air mixture.

In both cases, turning off the engine and restarting it cured the
problem. Seems like the ECU got out of wack and restarting it caused it
to reset and function correctly.

Does anybody know what might be happening? Do I need to do something
about it or is restarting enough? I searched the archives and saw a
technote on a malfunctioning wiring harness (Digifant harness & Bucking
Technote). Could this be the problem?

Thanks.
--
Tim Wise
'87 WWW, Windrider