P0302
Cylinder 2 Misfire Detected
High — address promptly / stopPowertrain (engine & transmission)
System
Powertrain (engine & transmission)
Type
Generic (standardized)
Subsystem
Ignition system or misfire
What it means
Cylinder 2 is misfiring — incomplete or absent combustion in that cylinder.
Symptoms
Rough idle, vibration, power loss, possible flashing engine light.
Common causes
Spark plug or coil on cylinder 2, injector, compression loss or wiring.
Recommended action
Swap the coil/plug with an adjacent cylinder to isolate it; repair without delay.
Related codes
P0300Random/Multiple Cylinder Misfire DetectedP0301Cylinder 1 Misfire DetectedP0303Cylinder 3 Misfire DetectedP0304Cylinder 4 Misfire DetectedP0420Catalyst System Efficiency Below Threshold (Bank 1)P0430Catalyst System Efficiency Below Threshold (Bank 2)P0171System Too Lean (Bank 1)P0174System Too Lean (Bank 2)P0172System Too Rich (Bank 1)P0175System Too Rich (Bank 2)P0101Mass Air Flow (MAF) Circuit Range/PerformanceP0113Intake Air Temperature Sensor Circuit High
FAQ — P0302
What does code P0302 mean?
Cylinder 2 Misfire Detected. Cylinder 2 is misfiring — incomplete or absent combustion in that cylinder.
What are the symptoms of P0302?
Rough idle, vibration, power loss, possible flashing engine light.
What causes P0302?
Spark plug or coil on cylinder 2, injector, compression loss or wiring.
What should I do about P0302?
Swap the coil/plug with an adjacent cylinder to isolate it; repair without delay.
General reference based on the SAE J2012 standard. Exact causes for your vehicle may differ — when in doubt, consult a workshop.
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