This is a shot in the dark but I replaced my electrical wiring harness in my 2010 cobalt. After doing so the car ran great and everything functions great now. But now my check engine light will come on and go off. Sometimes it is off a day and then pops back on. Do you have any tips? I have tried searching for videos and forums and can't find much of anything. Any help would be greatly appreciated. Thank you for your time!!!
Have you used a code reader to see what codes are causing the check engine light to come on? If you don't have one most auto parts stores will scan your car for free
This a long shot but at 8:40 you're removing that bolt from the frame to take the fuse box shit out, my cobalt DOES NOT HAVE THIS BOLT, SHOULD I HAVE THIS BOLT? EVERYTHING IN MY ENGINE BAY IS LOOSE AND RATTLING LOL
