All I have is the Hypertech unit which will just show the DTC's and it has only thrown the general P0300 code no codes identifying a specific cylinder.
I did disconnect the PCM plugs and cleaned them out with electrical cleaner and made sure they were secure again.
I didn't check for a vaccum leak but I'll try that in the morning.
If it's the PCM and I end up replacing, would I need to have a program loaded at a dealer or would it come ready to plug and play? I was actually Googling the part number for the PCM last night. The first search result I clicked on was what cause me to get the computer virus...That would be a little ironic if the PCM was responsible for taking down my Jeep and my computer.lol.