Cylinder 6 Above Knock/Combustion Vibration Sensor Threshold

Where it lives

For P2341, the part to look at first is the sensor named here. The description of P2341 puts it on cylinder 6.

Check these first

• Low-octane or stale fuel causing knock in cylinder 6
• Carbon hotspots on piston 6 or its valves
• Over-advanced ignition timing under load
• Fouled or wrong-heat-range spark plug in cylinder 6
• Low compression in cylinder 6 raising combustion noise

What to do next

1. Verify fuel octane and top up with the correct grade
2. Read live knock retard data for cylinder 6 under load
3. Inspect and replace the spark plug in cylinder 6
4. Run a compression test on cylinder 6 and compare to the others
5. Check for carbon buildup with a borescope and clean if heavy
6. Clear the code and retest

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