Gail,
This is probably a solder joint on a big component that vibrates and
eventually cracks, causing intermittent problems. Take the ECU apart
and examine the board closely. Resolder suspect joints and put a dab
of silicone seal on the component itself to prevent recurrence.

--rich

> Could well be the ECU - I had same symptoms years ago in my '87 and
> it was the control unit. You could tap on the box (or jiggle it when
> unmounted but connected) and the engine would stop. The original in
> mine was made for VW by Triumph-Adler, not Bosch. Replaced with
> Bosch and has been OK since.
>
> Bus Depot has new units at good prices - call Ron Salmon at (610)
> 754-8989.
>
> Tom
>
>
> >Help!  Need brain board for 87 Westy. Part #025-906-022D, or better
> >diagnosis of problem - Intermittant loss of ignition.  Dealer has
> >no further ideas. Please hurry, good weather is waning. Please
> >contact me directly -
> gtyler@vines.colostate.edu or at
> >970-416-9363
Richard Lamoreaux   Tucson, AZ
lumpy@rtd.com       (602)296-1226

'78 VW Chicken Coop
'87 VW Weekender
'87 Chevy Nova
'94 Chevy S10
'88 Dog Shadow
http://www.rtd.com/~lumpy/