On 3/12/15 11:17 AM, mark drillock wrote:
> In the engine compartment main wiring box the black wire has a
> connection that could be bad and cause your problem.
Main wiring box?  Is this the box with the FP & ECU relays ?

> The black wire on one side of the connector comes from pin D15 of the
> dash and then it splits off on 2 black wires to 2 places including to
> the coil.
>
> The D15 pin is on the other side of the dash fuse/relay panel. If you
> have the Bentley diagrams the panel is best shown on page 97.68 and
> the same fuse/relay panel diagram works for all 86-91 vans.

Yes, I see in Bentley where D15 is located , this should be straight
forward to pinpoint and check.
>
> The D connector is the top center one. That page shows which pin is
> #15 of that connector. Unplug that connector and look at that pin.
>
> Mark
>
> John Goubeaux wrote:
>>
>> I replaced the ignition switch and then I checked for current at the
>> ignition coil black wires ( terminal 15 ) and do NOT get any current
>> there at all with key-on-power. So looks like you nailed it ( again )
>> Mark !
>>
>> So, when you say:  "burned out pin D15 of the main panel."  you mean
>> it's disconnected, corroded or ?  What's my next step? I assume open the
>> panel and investigate ? Any pointers on what to look for etc. at this
>> point.  I assume that current flows from the D15 pin directly back to
>> the #15 connector at the coil, right ? OR is there anything in between ?
>>
>> Doesn't look like I'm gonna need those relays that I ordered !
>>
>> Thanks again -john
>>
>>> From there the smaller of the black wires carries power over to the 2
>>> relay sockets to enable them. That is what you found missing, the
>>> enabling voltage at pin 86 of the FP relay socket. Check the black
>>> wires for voltage when the key is on.
>>>
>>> Mark
>>>
>>>