332 Stim board - was '749 questions

[Shannen Durphey]

Well, if I can get things going within the next couple of nights, I'll
measure the voltage output from the module on me ecm bench to the
749.  I'm using a 60Hz a/c signal to trigger the module instead of a
pickup coil, and the ecm is very happy with that setup.  
Shannen

Bill Shaw wrote:
> 
> Hi Bruce,
> 
> What I'm trying to accomplish is to get a '749 running on the bench.  The stim board
> with the pic is supplying fake signals to the '749. My ECM bench is coming out real
> clean using the stim.  I'll post pics when it's running. REAL SOON NOW!
> 
> FWIW,  the stim board is at http://members.tripod.com/Heelandtoe/stimboard.htm
> 
> I'm also planning the installation in my Spider as I go,  hence the ign module
> questions.   BTW,  thanks for suggesting the '749 (long time ago!)  It's going be
> pretty straight forward to replace the analog ECU in my Spider using it.
> 
> Shannon,  thanks for the info.  That's exactly what I was missing.
> 
> Luddis, I couldn't have built it without your schematics & pinouts.  Thanks again!
> 
> Back to wiring...
> 
> Bill
> 
> Bruce wrote:
> 
> > Can I suggest just using your 555 to fire a LED thru a 1K resistor, and feed
> > that (the 1.8v) to a GM ign module, and wire that to the ecm.
> >    The Pic isn't needed for a DIS type system unless your looking to make a
> > DIS 749.
> > I'm not sure of what your trying to really accomplice here.
> > Bruce
> 
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