Date: Sat, 23 Jan 2010 15:40:24 -0800
Reply-To: Scott Daniel - Turbovans <scottdaniel@TURBOVANS.COM>
Sender: Vanagon Mailing List <vanagon@gerry.vanagon.com>
From: Scott Daniel - Turbovans <scottdaniel@TURBOVANS.COM>
Subject: Re: fuel pump problem?
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what pops into my mind is a stuck on fuel pump relay ( it's the one on the
right, the one with a double white wire coming off it ) ,
< well, to make sure I'm not giving someone bum info, ...that's on a 84 1.9
waterboxer. I think the fuel pump relay wiring might be different in later
years. >
Or......the ECU is providing full time ground to the fuel pump relay.
that's rare, but I do have one 1.9 Ecu that does that.....pump runs
continuously with key on. - and it's the ecu for sure on that one.
The fuel pump doesn't shut off after a few seconds because it knows the
system is pressurized....it just does it by time, prett' sure.
For sure, the ecu has no idea what the fuel pressure is.
on fuel pressure............... Oddly, I had some weirdness on a 'hasn't
run in a few years' vanagon yesterday. It was acting weird.
I put a fuel pressure gauge on it ....100 psi, while cranking. - Bad fuel
pressure regulator, which I consider very, very rare.
But it is good to actually see what the fuel pressure is.
There is sort of no way really to be sure fuel pressure is correct, without
putting a gauge on it.
Usually, when digging through a running or starting issue, once I put the fp
gauge on it, I just leave it on there until I'm finally through with the
whole process, and things are working right again.
And ............winter too .........one thinks of 'fuel system' more in the
winter - due to condensed water in the tank, due to more moisture
everywhere....perhaps even from the gas station tanks the fuel comes from.
Always consider 'the fuel itself' too, though of course that won't make your
fuel pump run continuously. Sorry...getting ahead of things there.
Scott
----- Original Message -----
From: "Mark" <mbrush@GMAIL.COM>
To: <vanagon@GERRY.VANAGON.COM>
Sent: Saturday, January 23, 2010 2:40 PM
Subject: fuel pump problem?
> Hi all - Just went to fire up the vanagon after a four week layoff. It
> started right up, then died and wouldn't re-start. When I 'energize' the
> system (turn key without starting all the way), the fuel pump runs
> continuously. It's never done that before. It normally just cycled on
> and
> kicked off once it was pressurized. Any ideas on where to start looking?
>
> Mark
>
> --
> Mark
> 1990 Westy (2.1 - manual)