My car won't fire but I only see 12 volts from the coil wire when I crank. Shouldn't I see 35,000 volts or something like that? Bad ignition module?

 

You should see 12v power to the coil harness plug, but you can't measure voltage output of the coil to optispark wire with a multimeter-too much voltage.

 

Ah. Well that helps. I only see 12 volts coming out of the coil wire so something is messed up there.

BTW, your website diagrams of wiring and sensors...HUGE help!

 

So would this mean the ignition module is bad?

 

I don't know if I could come to that conclusion from what you did. I have never put a meter on the coil wire and would not risk blowing up my meter to do it. If you were not cranking the engine with the meter on there, then you would not see any high voltage and there would be no risk. Not sure how you were doing it.
Most people seem to have a hard time finding a place that can test the ICM, but you might be able to find one in your area.

 

Yeah I'm going to take it to a shop tonight.

I also see voltage coming in from the PCM to the ICM so more than likely its either the NEW MSD coil or the ICM.

Its a $10 voltmeter with a half *** display so I was looking forward to it catching fire and going boom. No such luck. Only saw 12 volts out of the coil wire.