Output of distributer's magnetic pickup

[Raymond C Drouillard]

On Wed, 15 Apr 1998 01:07:37 -0600 Shannen Durphey <shannen at mcn.net>
writes:
>Raymond C Drouillard wrote:
>> 
>> <snip>
>> The module I have has five pins on one side and two on the other.  The
>> "two pin" side goes to the coil.  Three pins on the "five pin" side go
to
>> the ECM (signal out, signal in, and a 5v level that will cause the ECM
to
>> be bypassed if it's missing).  The other two pins go to the magnetic
>> pickup coil in the distributer.  I'm trying to feed the signal from a
>> Motorcraft Duraspark distributer into those two pins.  I tried both
>> polarities.
>> 
>> I would measure the voltage myself, but I don't have access to a
'scope.
>> 
>> Ray Drouillard
>> 
>I seem to remember that 5-7VAC is enough to trigger the
>module.  If you have a DVOM you can measure the voltage from
>the distributor.  
>
>Do you have the module powered up?  One of the wires from
>the coil is ign+ to turn on the module, the other is coil-.
>
>Shannen

Uh...... ya busted me!

That was indeed the problem with my first try <donning conical hat>.  I
couldn't get the GM distributer that I pulled the module from to fire it.

A couple days later, it dawned on me that I need to "plug it in".  I ran
a wire from an ignition source to the "+" pin, hooked up the Holley, and
tried it.  It fired the Jacobs ignition, and the Holley dutifully
injected fuel down the throttle body.

Still, I can't get the Ford distributer to fire it.  Maybe I'm missing
something very basic (again)  <:-)

Ray Drouillard

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