Date: Mon, 16 Jun 2014 10:02:12 -0600
Reply-To: OlRivrRat <OlRivrRat@COMCAST.NET>
Sender: Vanagon Mailing List <vanagon@gerry.vanagon.com>
From: OlRivrRat <OlRivrRat@COMCAST.NET>
Subject: Re: 88 GL - Failure to start - The Saga Continues
In-Reply-To: <CANEuo0gJRwtt-6HLsr49mi5gVEYrKDVsNiY4TPVwRSMR0U2X0Q@mail.gmail.com>
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While the IgnitionSwitch is a Cheap&Easy item to try EarlyOn in a Diag' ~ It IsNot the Cheapest&Easiest ~ The 2 Relays (FuelPump&ECUPower) in the BlackBox above the coil are Cheaper&Easier to Replace & I have seen them cause similar behavior to this a couple of times in the recent past ~
ORR ~ DeanB
On 16 Jun , 2014, at 6:47 AM, kenneth wilford (Van-Again) wrote:
> John, it sounds like a problem with the ignition to me. Like someone is
> just shutting the key off after the van starts up. Of course it could be
> that simple. Your ignition switch (electrical part) can fail and possibly
> cause this problem. You might want to try one of those first as this is
> the cheapest possibility.
>
> You could have a loose wire on the coil. I know you just replaced it but
> recheck the wire connections there. I have had a bad end connector on one
> of the small black wires to the coil, cause the van to shut off when
> hitting a bump. New end connector fixed this problem.
>
> Hall Sensor or ECU. The two things beside the coil that control spark are
> the hall sensor (inside the distributor) and the ECU (under the rear seat).
> Unfortunately there isn't a good way to test either of these with a meter.
> In fact the way I test for these is to swap in a known good unit and see
> if that fixes the problem. So if you have a local person who is willing to
> loan you his ECU or you have a good spare that would be something to try.
> If the ECU doesn't fix it then I would suspect the hall sensor. I would
> recommend getting a rebuilt distributor as doing this job yourself isn't
> really easy and there may be wear inside the distributor at this point. A
> rebuilt unit will give you ground zero on a part that wears out over time
> and miles.
>
> Of course, as always, we stand ready to supply your parts needs. I have
> rebuilt ECUs available for $250 and rebuilt distributors available for $259
> (plus core charges). I also have a supply of OE ignition switches for $29
> each (they are actually not easy to get at the moment).
>
> I look forward to helping you in the future.
>
> Ken Wilford
> John 3:16
> www.vanagain.com
>
>
> On Mon, Jun 16, 2014 at 12:22 AM, JRodgers <jrodgers113@gmail.com> wrote:
>
>> Didn't get a lot done on this today - but here is what I have so far.
>>
>>
>> Fuel Pump Check - runs when ignition is turned on
>>
>> Injector Test - Pulled and tested - all four injectors are discharging
>>
>> Coil test via Hall sender -- Coil is good
>>
>> Injectors pulse when coil is tested.
>>
>> Computer control for ignition via Hall sender - Good
>>
>> Fuel pressure test: 30+ psi
>>
>> With a brief pause after the ignition switch is turned on - the pump can
>> be heard running. After waning chime turns off - ignition key turned to
>> start - Engine fires - runs briefly - then quits without a sputter - as
>> if it has run out of fuel.
>>
>> Question: is there no fuel flow after initial start up? If so, what wold
>> be controlling that (ECU but how? What's happening.) Or could it be that
>> there is a fuel filter problem and just as there is greater demand for
>> fuel there just isn't enough coming through. Gauge says there's still 30
>> + PSI
>>
>> The testing has begun to accumulate the data to find this problem!
>>
>> John
>>
>
>
>
> --
> Thanks,
> Ken Wilford
> John 3:16
> www.vanagain.com
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