P0305: Cylinder 5 Misfire Detected
What this check-engine code means in plain English, what usually causes it, and what a fix typically costs.
What P0305 means
The engine control module has detected that cylinder 5 is not firing properly or consistently. A misfire means the air-fuel mixture in that cylinder isn't igniting correctly, causing rough running, reduced power, and increased emissions.
What causes P0305?
Is P0305 safe to drive?
You can drive short distances, but continued driving with a misfire can damage the catalytic converter (an expensive repair) and reduce fuel economy. If the check engine light is flashing, this indicates severe misfires and you should stop driving immediately to prevent catalytic converter damage.
P0305 repair cost
Industry-average estimates. Cost depends on the cause: spark plugs are inexpensive, but fuel injectors, ignition coils, or internal engine repairs cost significantly more.
Which one is it for your car?
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