P2365Cylinder 11 Combustion Performance
- 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
- P2365 means the ECM judges combustion in cylinder 11 to be poor, based on the pressure signal rather than on crankshaft speed alone. No manufacturer publishes this code; twelve-cylinder engines with pressure-sensing glow plugs are not documented. BorgWarner names the purpose of such sensors: letting the controller adjust injection quantity and timing per cylinder in closed loop. If the measured combustion of one cylinder stays outside its window despite that correction, a code of this kind results. CARB ties combustion sensors to stricter misfire detection on diesels. Causes include a fouled or leaking injector, compression loss, an intake air leak or contaminated fuel. Uneven running and more smoke are typical, often alongside P2361, P2362 or the misfire code P0311.
- What you may notice
- Check engine light on
- Uneven running and vibration
- More smoke from the exhaust
- Likely causes
- LikelyFouled or leaking injector of cylinder 11
- PossibleCompression loss in cylinder 11
- RareIntake air leak
- RareContaminated fuel
- Inspection (ITP)
- Matters for the ITP. While the check-engine light is on, the car fails the emissions check.
- Repair
- Hard · Usually a job for a workshop.Typical cost: €150 – €2,800
- Related codes
Explanation from obdex (CC0), exactly as the app shows it. Guidance only; confirm with a workshop.