P0300
Random/Multiple Cylinder Misfire Detected
OBD-II
Misfire
What it means
More than one cylinder is misfiring — worn plugs, coils, vacuum leak, low compression, or fuel delivery. A flashing check-engine light with this code means stop driving: raw fuel is destroying the catalytic converter.
Seeing P0300?
Get the full picture for your car — whether it's safe to drive, what the repair costs, and what to tell the shop.
Check your car freeRelated codes
P0301
Cylinder 1 Misfire Detected
MisfireHigh
P0302
Cylinder 2 Misfire Detected
MisfireHigh
P0303
Cylinder 3 Misfire Detected
MisfireHigh
P0304
Cylinder 4 Misfire Detected
MisfireHigh
P0305
Cylinder 5 Misfire Detected
MisfireHigh
P0306
Cylinder 6 Misfire Detected
MisfireHigh
P0307
Cylinder 7 Misfire Detected
MisfireHigh
P0308
Cylinder 8 Misfire Detected
MisfireHigh
General reference only — what a code means can vary by make and model. Confirm with a qualified technician.