My 95.runs great but occasionally eng. Dies or won't crank. Turns over fine. Everything else works. Just.has no fire at plugs. But if I unplug the PCM and replug it. It cranks and runs great. Until next time.
That's weird. Normally I was would say it is an intermittent Cam or crank sensor, but since resetting your PCM seems to fix your issue, you narrowed it to the PCM. You can try a different PCM and see if it does the same thing. I am wondering if it could be the security box interrupting.