P0301 Diagnostic Trouble Code Discussion for August 2026
Cylinder 1 Misfire Detected
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| Help Request | Posted | |
| 2014 Buick Regal Premium 2.0L Cuts out, Misfire, MIL Lamp on VIN: 2G4GK5EX2E P0301: once in a whille. Engine had amazon coil and plugs.. I installed new gm coils and spark plugs. Tried a new GM maf sensor..Can not get it to misfire under load by brake torquing it.. When its cold it's worse. Around 4,5 and 6 gear right around 2000 rpm it will misfire. When ... |
August 28, 2026 |
