Thread: SS M90 Question...

Originally Posted by DanGTP

It would run rich with the larger injectors, but it may be worth a try just to expose or eliminate the PCM as the problem.

Okay. I'll go give it a try.

I swapped in the GT PCM, and it didn't fix a thing. I'm still getting random/multiple misfires. Could it be that spark plugs weren't gapped correctly? What ELSE is there? I honestly have no idea what to do. I need my car.