Date:         Wed, 24 Oct 2012 15:37:56 -0600
Reply-To:     OlRivrRat <OlRivrRat@COMCAST.NET>
Sender:       Vanagon Mailing List <vanagon@gerry.vanagon.com>
From:         OlRivrRat <OlRivrRat@COMCAST.NET>
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; format=flowed; delsp=yes

                Hey Mark

        That is what I was thinking. I do actually have 2 KnownGood ECUs & as
I stated in the EM I posted back on Sat' (when it appeared as though
the IdleStab Relay might have fixed it) I swapped in an ECU right
after D15 looked OK & the RISS occurred again about 48min's later.
        I put my Spare IgnitionSwitch in it this morn' & drove it to run some
errands & it was doing fine until about 3/4mi's from home @ about
30mph when it ShutDown & INSTANTLY Restarted on its own ~ the Tach did
dive toward zero but it was back running so fast that it did not get
all the way there.
        It will be just my luck that this thing has 2 issues that are
displaying similar symptoms ~ hate it when that happens!

                                                        ORR ~ DeanB

On 24 Oct , 2012, at 1:44 PM, mark drillock wrote:

> 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
>>