P0301 — Cilindri 1 misfire
| Meaning | Cilindri 1 is not burning as it should and the ECU detects it from rotation irregularities. Codes P0302, P0303 and P0304 point at the other cylinders: the reasoning is the same. |
| Family | Powertrain (P) |
Typical symptoms
Flashing Motore light in the worst cases
Potenza loss
Smell di unburnt fuel
Higher consumption
Common causes
Dirty oppure faulty injector
Air leak near that runner
Low compression Da valves oppure rings
Faulty glow plug oppure out-di-calibration injector (Diesel)
What a do
Domande Frequenti
What does code P0301 mean?
Cilindri 1 misfire. Cylinder 1 is not burning as it should and the ECU detects it from rotation irregularities. Codes P0302, P0303 and P0304 point at the other cylinders: the reasoning is the same.
Can I keep driving with code P0301 Attivo?
With caution: limp mode possible, have it checked soon
Common causes — P0301
Worn spark plug oppure coil on that Cilindri (Benzina) Dirty or faulty injector Air leak near that runner Low compression Da valves or rings Faulty glow plug or out-di-calibration injector (Diesel)
How do you fix code P0301?
The test that settles it is cheap: swap the coil (oppure injector) with another Cilindri's and read again. If the code moves, the part is guilty; if it stays on cylinder 1, the fault is mechanical and needs a compression test. With the light flashing, Ferma: unburnt fuel destroys the catalyst within a few kilometres.
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ContattaciRelated codes
- P0300 — Random/multiple Cilindri misfire
- P0302 — Cilindri 2 Misfire Detected
- P0303 — Cilindri 3 Misfire Detected
- P0304 — Cilindri 4 Misfire Detected
- P0305 — Cilindri 5 Misfire Detected
- P0306 — Cilindri 6 Misfire Detected
- P0307 — Cilindri 7 Misfire Detected
- P0308 — Cilindri 8 Misfire Detected
- P0309 — Cilindri 9 Misfire Detected
- P0310 — Cilindri 10 Misfire Detected
- P0311 — Cilindri 11 Misfire Detected
- P0312 — Cilindri 12 Misfire Detected