This Jeep is one of the best SUVs I have ever owned, hands down, but a few weeks ago I started having problems. While driving it would act like it was missing and give a check engine light.

I put the tester on it and it was a bunch of random error codes, like the viscosity of the oil was too low, there was a misfire, transmission problems and once I turned the jeep off and restarted it she ran fine for a day or two then the same thing.

I have ordered a new PCM ECU going to install it and see if this takes care of the problem. I'll clean the contacts and go from there.