Well, my buddy and I got the new Dynaspark in, hooked up and what-not...but she still won't run!

No spark at the coil wire, no AC voltage at pin-B of the ICM harness but there is voltage fluctuation on pins A & B on the Opti harness like there should be. So, what gives? Is this one of the rare occasions that the ECM actually went bad on my Z? Or is there something else I should check first? How can I verify the harness is still good? Thanks in advance.

 

Anyone have any ideas? Please?

 

Did you check continuity from the ICM to the PCM on the white wire?

Did you check the fuse?

Did you check for 12 volts at the ICM on pins A and D?

Do we assume you are talking about the 93?

 

Yup, talking about the 93. Yup, checked pins A & D, over 12 VDC each. Fuses are all fine. However, I didn't check the ICM pulse line...as I have no idea where the other end goes into the PCM (i.e. which harness and pin). Which would it be?

 

Anyone?

 

check the wires going into your coil they tend to corrode or break inside the plastic connecter. make sure you have a circuit going through the connecter .

 

Did you check the ECM for codes?

 

I checked the pink line going into the coil, +11.7 VDC, so I know that wire is still good. I'll look at the others, but I'm pretty sure the coil connector is fine.

Fred, no codes were present. Could part of the ECM have gone bad without triggering any code?

 

It's possible that the ECM is bad, and I've also personally seen the Memcal crap out too, just food for though. If you need a spare memcal or ECM let me know, I have each that we could work something out on if need be.

 

I'll keep you in mind man, thanks

 

Well, got another ECM and memcal from another member here, still no start. Its looking like the wiring, right?

 

So, I'm a moron. Did a continuity check on the wiring, everything checked out. This whole time I was testing the wires at the ICM, I was checking them in order of the diagram in my Helm manual (similar to the one on Shoebox's site), assuming that they were in the same order on the ICM harness. Everything checked out, so on a hunch my buddy and I tried the ICM and coil out of his 94 TA. Low and behold, she fired right up. Stupid, cheap parts...grrr lol. Thanks for all the help guys.