P0301 Diagnostic and Fix for Chevrolet Cavalier - How to Resolve Misfire Code
I urgently need help! My Chevrolet Cavalier is due for smog inspection, but I can't get it passed until the check engine light is turned off. The diagnostic code shows P0301, indicating a misfire in cylinder 1. I've already replaced the spark plugs and ignition wires, but the code persists. What other troubleshooting steps should I take? Any advice would be greatly appreciated.
Cylinder 1 is misfiring. To diagnose further, check if the fuel injector is pulsing and verify that the spark coil is operating correctly.