Hi Matt L,

I had to disconnect the battery when putting in the new harness. I'm fairly sure that everygthing is hooked up correctly and I already checked the gas cap (thanks for the suggestion). Could it be that the ECU is in the process of retraining and I should just leave the car alone? Alternatively, is it worth disconnecting the battery once again and reconnecting after a couple of hours? Is it normal for the check engine light to come on after a new harness is installed?