P0306 Cylinder 6 Misfire Detected
What does P0306 mean?
P0306 — Cylinder 6 Misfire Detected. This is an OBD-II diagnostic trouble code a scanner retrieves when your vehicle's computer detects cylinder 6 misfire detected. The level of risk depends on how the vehicle is currently running and how long you've been driving with the light on.
Common causes of P0306
- Faulty spark plug or ignition coil on cylinder 6
- Clogged or leaking injector on cylinder 6
- Vacuum leak at the cylinder 6 intake runner
- Low compression in cylinder 6
- Valvetrain wear
How to fix P0306
- Check cylinder 6 misfire counts on an OBD-II scanner
- Swap coil and spark plug and watch for the misfire to move
- Inspect the cylinder 6 injector
- Compression test cylinder 6
- Inspect the intake manifold gasket near cylinder 6