The fuel pump only runs while the engine is turning, (ignition pulses) or
the starter is cranking. The +12 volt is switched by the relay. The relay
is controlled by the ECU. The 12 volt to the pump is also the 12 volt to
the injectors. The injectors are controlled by the ECU completing the path
to chassis.

Dennis

-----Original Message-----
From: Vanagon Mailing List [mailto:vanagon@gerry.vanagon.com] On Behalf Of
Kurt Grotz
Sent: Wednesday, September 12, 2007 5:41 AM
To: vanagon@GERRY.VANAGON.COM
Subject: Fuel Pump Wos.......

After 3 years I finally was able to afford to send my 86 GL to a real VW
shop. It was running best ever thanks to the folks at Gene's for three
days
until Sunday when I was driving home with my dog Rex - through my small
home
town of Media PA. (THere are 2-3 of us Vanagons in town.) Anyway - it dies
again.  The engine just stops.

It felt like the old familar fuel system going dead.  I know what that
feels
like....after 3 fuel pumps - and finally a new gas tank I thought I had it
resolved.

My first thought is that it might be the used fuel pump that went kaaput.
I swear I am getting a new one soon!   But, I checked the juice to the
pump.
No juice with ignition on.   At least I can check that myself.  There
should
be juice to the positive terminal with switch on - correct?

So - I am thinking it is something else.  If I am not mistaken there is a
fuel pump relay in the engine compartment, which I found after much
searching in Bentley manual.  Wouldn't is be nice if that book had a real
index?   I don't have a lot of testing equipment so are there any ideas of
what and how I test next.   I have a couple of old relay switches from my
old 84 vanagon (deseased.)  Do they work as replacements?

I sure hope it is something simple because when it died - I coasted it
down
a friends driveway - into a spot that will be darn hard to get a tow truck
into.   Man I hate it when that happens.

Thanks

Kurt Grotz

PS - I am the chap that hyrdo seized (what ever that is called) my engine
when goofing with the fuel system a year or two ago. You all helped with
the
a great deal.