P2341Cylinder 6 Above Knock/Combustion Vibration Sensor Threshold
- Generic OBD-II code · Powertrain
- Turns on the check-engine light
- Matters for the ITP
- Needs a drive cycle to confirm a fix
- How the car detects it
- Cylinder 6 is the last cylinder of inline-six and V6 engines, and P2341 reports that its share of the knock sensor signal has crossed the limit. Modern knock control adjusts ignition timing for every cylinder on its own, so a single cylinder can run retarded while the others keep optimum spark; the code tells which one keeps knocking. How a manufacturer reports this differs: GM and Saab use P0324 for excessive knock on one cylinder over more than 8 s, while knock on more than one cylinder or an improperly bolted sensor leads Saab to the sensor performance codes P0326/P0331. No public manufacturer document using P2341 was found. Check fuel quality, deposits, the plug and the injector of cylinder 6, and whether a loose part is making noise in that crank window.
- What you may notice
- MIL on
- Knocking at full throttle or uphill
- Reduced power
- Likely causes
- PossibleFuel octane too low for the engine
- PossibleDeposits in the combustion chamber of cylinder 6
- RareLoose component or valve train noise read as knock
- RareLean mixture in cylinder 6 from a restricted injector
- Inspection (ITP)
- Matters for the ITP. While the check-engine light is on, the car fails the emissions check.
- Repair
- Medium · Usually a job for a workshop.Typical cost: €0 – €4,000
- Related codes
Explanation from obdex (CC0), exactly as the app shows it. Guidance only; confirm with a workshop.