Date:         Wed, 24 Oct 2012 17:31:38 -0400
Reply-To:     Dennis Haynes <d23haynes57@HOTMAIL.COM>
Sender:       Vanagon Mailing List <vanagon@gerry.vanagon.com>
From:         Dennis Haynes <d23haynes57@HOTMAIL.COM>
Subject:      Re: Random Instant Shutdown
Comments: To: mark drillock <mdrillock@COX.NET>
In-Reply-To:  <50884513.8080008@cox.net>
Content-Type: text/plain; charset="US-ASCII"

Up at West River Westys someone had an intermittent shut down problem and in
trying to help it turned into a no run at all. Found the 12 volt wire from
the coil to the ECU was corroded inside the insulation. Had to cut back
about 6" and add a piece to get unbroken wire strands. That fixed it.

Dennis

-----Original Message-----
From: Vanagon Mailing List [mailto:vanagon@gerry.vanagon.com] On Behalf Of
mark drillock
Sent: Wednesday, October 24, 2012 3:44 PM
To: vanagon@GERRY.VANAGON.COM
Subject: Re: Random Instant Shutdown

Exactly right, a hall problem won't stop the fuel pump from cycling on for
1-2 seconds EVERY time the key is turned on. Look at the ECU or the power
feed to the ECU. I have seen and fixed numerous intermittent and solidly
dead waterboxer vans by finding a bad wire that kills power to the ECU.
Often one right at the alternator main wiring stud. There are just a few
wires that can do this. If you have access to a spare ECU try it. IMHO
everyone who travels in a wbx van should have a known good, tested in their
own van spare ECU along for the ride. There are so many floating around now
that a used one can be found for under $100 unless you wait until you have
to have one quick. It is not that they fail very often, just that you can
swap one in in 2 minutes and then move on to finding the real problem, or
just to keep a shop from ordering an expensive part you can't return.

Mark


OlRivrRat wrote:
>                 Ken
>
>         I have a spare Dizzy to try but I but am wondering if the
> HallSensor,
>
> good or bad, has any influence when the engine is not running as it
> would not
>
> be sending any signals until the Dizzy starts turning. Is it a
> situation where
>
> the circuit is disrupted & therefore the ECU does not allow the
> FuelPump to do
>
> its PreRunPumpUp?
>
>                                                         ORR ~ DeanB
>