I just drove the vehicle over 200+ miles since I bought it used. I took it up to my daughter in school and the check engine light came on. The car had the code read of PO300 at AutoZone, and the car was taken to a mechanic in her area. He said don't worry about it(came-up with same code), but watch for any performance issues, and if that occurs bring the car in. My question is it is OK to keep driving the car while I try to diagnose the misfire-plugs, wires, coils, and injectors? Any ideas what the most common cause may be?
Friday, June 28th, 2013 AT 8:45 AM