Karl,
    So which one(on an 87) would you pull when doing a
compression check and why?   thanks gary
Date:    Tue, 22 Apr 2003 19:55:50 -0400
From:    "Karl F. Bloss" <bloss@CITYNET.NET>
Subject: Re: black box above coil

> Date:    Thu, 17 Apr 2003 20:52:22 -0400
> From:    Sylvie et Germain <reglys@SYMPATICO.CA>
> Subject: Re: black box above coil

> The Fuel Pump Relay provides battery voltage to the
fuel
> pump, injectors and other devices.

My experience with this tells me that on my '87, the
relay on the
passenger side is fuel pump, but not injectors.  The
reason I say
this is that you can take that relay out, run your
engine and it'll
depressurize the fuel system by burning whatever gas
is pressurized
in the lines.  The engine should die in a few seconds.

This allows you to depressurize the fuel lines when
you replace them.

On the Digijet ('83.5-'85 1.9L gas engine), I believe
that relay
controls both.  That means to depressurize the fuel
system, pulling
that relay won't work.  You need to pull the fuel pump
ground wire
and then run the engine the same way as above.

-Karl

Karl & Kristina Bloss - Hurricane, WV
'85 Westfalia Camper "Fred"
'93 Eurovan MV "Amelie"
WV VW Club:  http://WVVW.ORG
"Bound to cover just a little more ground..."

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