I concur.  I have a 90 vanagon that had the same
problem, especially on long trip up to the mountains
(coincidence?).  replacing the Hall effect sender
cured it.
Graham
90 GL Country Homes Conversion

--- "Karl F. Bloss" <bloss@ENTER.NET> wrote:
> > I have the same problem on my '87 and it has a
> relatively new AFM and the
> > harness modification (capacitor).
> >
> > Gary
>
> While you should certainly check out this portion of
> the FI system, also take a
> glance at your Hall Sender on the distributor.  If
> it grounds out, you get no
> RPM signal to the ECU, meaning no injector pulses.
> Jiggle the Hall wiring
> harness and see if you can get it to stumble.  Don't
> crack it in the process
> though.
>
> -Karl
>
> Karl and Kristina Bloss, Trexlertown, PA
> '87 Westfalia Weekender  "Beverley" - 189K miles
> VW Mechanic list:
> http://www.enter.net/~bloss/vw/vwshops
> PA/NJ Vanagon owner's mailing list:
> http://www.onelist.com/subscribe/pavanagon
>
>
>

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