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P0306: Cylinder 6 Misfire Detected
Cylinder number 6 is misfiring.
High Severity
$50 – $600
Can I Keep Driving with Code P0306?
Avoid extended driving.
What P0306 Means
Cylinder 6 misfire on V6 or larger engines. Same root causes as other single-cylinder misfire codes.
Common Causes
- Bad spark plug in cylinder 6 — see repair cost
- Failed ignition coil on cylinder 6
- Clogged fuel injector — see repair cost
- Low compression
Diagnostic Tips
- Swap the suspect coil with a neighboring cylinder to confirm.
- On rear-bank cylinders (Hondas, Toyotas), labor is higher to access.
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Get My Free EstimateFrequently Asked Questions
Why does cylinder 6 misfire on Honda V6 engines?
Rear-bank cylinders are notorious because they are harder to access, so spark plug changes get skipped.