Have 86 Vanagon.
Similar problem to yours.  Cutouts in my case have been caused by faulty
Hall sender in distributor - when this happens tach goes to zero.  Other
cutouts caused by faulty AFM - tach does not go to zero.  Any ECU problems
on my van have been caused by faulty inputs or bad grounds - not ECU itself.

John Brigstocke
Elora, Ontario, Can
jbrig@attglobal.net

----- Original Message -----
From: "tabe johnson" <xtabe@YAHOO.COM>
To: <vanagon@GERRY.VANAGON.COM>
Sent: Tuesday, August 10, 2004 12:10 AM
Subject: Pseudo-Vanagon Syndrome?

> So I've been having the odd lurch where the engine cuts out for less than
> a second.  Seems to happen any time.  Engine temperature, speed, throttle
> opening, ambient temp are not important.  Today, it got a lot worse-- it
> happened maybe 15 times in a 45 minute drive, and one very interesting
> thing I noticed is that every time it happened the tach dropped to zero
> momentarily, then when the engine started to fire again the tach would
> go back where it belonged.  So obviously an electrical problem.  I cleaned
> the main relay, bent the pins on the computer a bit, and cleaned the
ground
> for the computer, on the left cylinder head, and on the left side of the
engine
> bay.  It's now behaving well, but it could recur...
>
> Anyone have anything else I should do or look for to troubleshoot or
repair?
>
> Thanks!
>
> --tabe johnson
> xtabe@yahoo.com
> 1987 Westy
> Vancouver, BC
>
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