yes.. It was done when the PCM was replaced. I havent done many is it possible that doing it again could solve the problem? Any Idea what bypass deviation or reference pip is? Thats what the ICM I took off failed

I believe the reference is the signal from the crank sensor. If the CASE is off it will effect timing, and can cause a misfire by not sending the spark at the right time.

So after two bad Ignition control modules from the local pull apart I was able to get my hands on a new one. I Also used some electrical parts cleaner to spray out the connector. Just for *&G did a case learn again also and random misfire is solved. No more p0300 and not one misfire on 3 or 6 Thank you for the help new forum to add to favorites and daily brosing list

Great news. I will mark as fixed.