P2341 code meaning
Cylinder 6 Above Knock/Combustion Vibration Sensor Threshold
Powertrain system Generic code P23xx codes Check engine light
What P2341 means
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.
P2341 at a glance
- Check engine lightYes, usually on
- Emissions testCan fail
- Limp modeNot expected
- Repair difficultyMedium
- Typical labor0.5 to 8 hours
- Clears after repairAfter a drive cycle
Symptoms of P2341
- MIL on
- Knocking at full throttle or uphill
- Reduced power
Common causes of P2341
- PossibleFuel octane too low for the engine
- PossibleDeposits in the combustion chamber of cylinder 6
- Less likelyLoose component or valve train noise read as knock
- Less likelyLean mixture in cylinder 6 from a restricted injector
Check the most likely causes first. Replacing parts by guesswork is the most expensive way to clear a code.
Parts involved
Knock sensorCylinder 6
What each part of P2341 means
| P | Powertrain system: engine, fuel system, ignition, emissions and transmission. |
| 2 | Generic code (second SAE range): it means the same on every make. |
| 3 | Area: ignition system or misfire. |
| 41 | The exact fault in that area. |
What to do next
- Note P2341 and any other codes stored with it: several codes together often point to one cause.
- Check for loose connectors and damaged wiring around the parts the code names.
- Check open recalls for your car: some faults are fixed for free by the dealer. Enter your VIN.
- Clear the code only after the repair. If it comes back, the fault is still there.
Buying a used car? Scan it for stored codes before you pay. A recently cleared memory can hide a problem.
Questions about P2341
What does P2341 mean?
P2341 means "Cylinder 6 Above Knock/Combustion Vibration Sensor Threshold". 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. It is a generic code, so it means the same on every make.
Is it safe to drive with P2341?
Usually yes, for a short time, if the check engine light is steady and the car drives normally. If the light flashes or the car runs badly, stop and have it checked.
Will P2341 fail an emissions test?
Yes, it can. P2341 is emissions-related, so most inspection programs fail a car while it is stored or while the check engine light is on.
How hard is P2341 to fix?
Difficulty: medium. A typical repair takes 0.5 to 8 hours of work. This is a job for a workshop.
Will P2341 clear itself after the repair?
After the repair the car has to complete a drive cycle (a mix of city and highway driving) before the test runs again. Until then the readiness monitor shows "not ready", which can fail an inspection.