mack1

Hi Brock,

I was able to read the PDF file, but the definition was not good enough for me to mark it up and feed back to you. Would you mind scanning it again, save it if JPG format and repost. Needs to be less than 1.9 meg size for pasting to the post. That would make it clear enough that I could mark it up and send it back as a talking reference.

Without being able to feedback a marked up copy of the print, maybe I can give you something to check using words with you refering to your print. From the ECU, there is a dark green with red striped wire that goes to the injectors, alternator, and the ignition coil. I'm thinking that wire is normally high (probably 12 volts, but could be 5) and is pulled low each time a firing point is reached as the engine turns over. The coil circuit is very simplistic on that print and more data on the coil circuit would be nice. In any event, a measurement there might tell you if the ECU is telling the coil to fire. You can either unplug the wire at the coil for measurements, or back probe it. You should get a reading on the AC scale of you voltmeter with the engine turning over. Measure it first on the DC scale with the ignition in the run position. This will tell you if it is a normally high circuit that is pulled low by the ECU. If you get an AC voltage when the engine is turning over, then you will know that the ECM is trying to cause spark.

See if you have AC there and post back if not.

Best regards,
Mack1