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I thought the paste was just a heat sink deal. From my memory the ICM's jumped up the volts or amps. It's all voodoo to me. The WSM has a great few pages early on for trouble shooting a no start situation. I had to do that once with a muitimeter way back when. Check your wires (cuts) all your grounds.
Anyway about 2 years ago when getting my car out of a long sleep I replaced the ISM's (now made in taiwan, trouble??) and the goop on the back seemed ok but tore up one when removing it.
Here is what is inside of the ICM - that's where skynet got it's start - seems hard to believe that those tiny filaments could handle any large power surge. The more you know about these cars and their tech the more amazing it is that they do what they do.
The ground to the coils is what is actively switched so don't be surprised you didn't see it steady state (not running) - anyway its only short pulses when working correctly (you'd need an oscilloscope).
First see that you have ignition power on pins 15 of the coils (e.g. on with ignition) and also on pins 4 of the ignition amps. Check that Pins 2 of the ignition amps are grounded (to GP III).
Alan
I have 8v at EZK pin 15 with ignition on and 12v at pin 1 and 4 of the ignition amps with ignition on. I have continuity between pins 2 on ignition amps and ground. I have continuity between pins 1 and 4 on ignition amps. I also have continuity between pins 2 and 4 on each ignition amp, which seems weird.
The DS coil bracket has a ground cable to the block, but the PS does not. I can't remember if it ever did or if I removed it during the VEMS installation for some reason.
07-08-2022, 12:03 PM
