Date:         Mon, 11 Mar 2013 15:22:45 -0700
Reply-To:     neil n <musomuso@GMAIL.COM>
Sender:       Vanagon Mailing List <vanagon@gerry.vanagon.com>
From:         neil n <musomuso@GMAIL.COM>
Subject:      Re: Black Box Relay question
Comments: To: John Meeks <vanagon@gmail.com>
In-Reply-To:  <CAMuoOU4eZ7e-5tVJaynTOfyrBRZ1P86BO96Ym=RzPtOO=B+XZw@mail.gmail.com>
Content-Type: text/plain; charset=ISO-8859-1

Cool. Sure sounds like an issue with wires or connections at relays. But.....

FWIW, on my Jetta swap, a failed solder joint in a relay and breaking
hard wire in another caused intermittent starts.

Relays were NOT mounted in sockets. Bottom line: vibration-movement
very likely exacerbated things hastening BOTH relays to fail
intermittently.

I really doubt this is the case with your situation but it can happen
under the wrong circumstances.

images of failed ECU and FP relay starting here:

https://picasaweb.google.com/musomuso/EngineConversionJettaABA20#5841709942616190354

Neil.



On Mon, Mar 11, 2013 at 3:00 PM, John Meeks <vanagon@gmail.com> wrote:


> BTW the whole circuit started working while I was moving those relays around
> testing voltages and grounds. I'm guessing the fault lies in the wire bundle
> just ahead of the back box that took some heat in the fire. Till I can get
> in there at least I know what to wiggle if it quits.
>
> I put the pro training pdf on my phone ;-)
>
> John Meeks
> '91 Multivan
> Stock 2.1 250k miles
>
> http://www.vanagonauts.com
> Vanagon Rescue Squad
> iPhone and Android apps
>
> On Mar 11, 2013 4:17 PM, "neil n" <musomuso@gmail.com> wrote:
>>
>> Hey John.
>>
>> Though you've found out, for the rest, the power (ECU) relay has 5
>> pins after '88/89.
>>
>> I think there's a changeover in '88 as my '88 has a 4 pin relay.
>> Van-cafe shows this:
>>
>>
>> http://www.van-cafe.com/home/van/page_1126_750/cooling_fan_relay_88_thru_91_ecu_relay.html
>>
>> Neil.
>>
>>
>>
>> On Mon, Mar 11, 2013 at 1:05 PM, John Meeks <vanagon@gmail.com> wrote:
>>
>> > The fuel pump relay is inboard, closer to the engine.
>> >
>> >
>>
>>
>>
>>
>> --
>> Neil n
>>
>> 65 kb image Myford Ready For Assembly  http://tinyurl.com/64sx4rp
>>
>> '88 Slate Blue Westy to be named.
>>
>> '81 VanaJetta 2.0 "Jaco"  http://tubaneil.googlepages.com/
>>
>> Vanagon VAG Gas I4/VR Swap Google Group:
>>
>>
>> http://groups.google.com/group/vanagons-with-vw-inline-4-cylinder-gas-engines



--
Neil n

65 kb image Myford Ready For Assembly  http://tinyurl.com/64sx4rp

'88 Slate Blue Westy to be named.

'81 VanaJetta 2.0 "Jaco"  http://tubaneil.googlepages.com/

Vanagon VAG Gas I4/VR Swap Google Group:

http://groups.google.com/group/vanagons-with-vw-inline-4-cylinder-gas-engines