I have a 03 chevy cavalier. It randomly will begin misfiring (thus the P0300). other times it runs fine. I replaced the plugs, boots to the plugs, the fuel filter, and even the ICM. sometimes it runs like a champ. then it will begin misfiring, and i can't make it across an intersection! next morning, it will run like a champ again! I was assuming the P0141 was a result of the misfiring. could it be sending bad info the the computer, and thus causing the problems?
May 30, 2011 at 6:30 PM
