P0301Cylinder 1 Misfire Detected
Cylinder number 1 is not combusting correctly.
This code also has a manufacturer-specific definition:
Can I keep driving? NO
STOP the vehicle in a safe place. Continuing to drive may cause serious engine damage or put your safety at risk.
Sistema Afectado
Sistema de Encendido · Bujías, bobinas y cilindros
El problema afecta la combustión en uno o más cilindros: bujías, bobinas o inyectores.
Espacio para vendedores de repuestos
Aún no hay un anunciante en este espacio.
Symptoms You Will Notice
What you may observe when this code appears
- Engine vibration
- Power loss
- Irregular fuel consumption
- Check Engine light flashing
Possible Causes
The components or conditions that trigger this code
- 1Faulty cylinder 1 spark plug
- 2Damaged ignition coil
- 3Clogged injector
- 4Low compression in cylinder 1
How to Fix It — Step by Step
Recommended diagnostic and repair procedure
- 1Replace the cylinder 1 spark plug
- 2Test the coil with a multimeter
- 3Check the injector
- 4Measure compression
Note: This information is for general reference. For precise diagnostics and safety repairs, always consult a certified mechanic.
Estimated Cost
Approximate range in USD (varies by region and shop)
Spark plugs + coils
* Diagnosis only: $50–$150
Quick Info
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