OBD-II code · Powertrain (generic, extended)
P2350 Cylinder 9 Pressure Variation High
Cylinder-to-cylinder pressure variation on cylinder 9 is above the calibrated maximum — combustion is unstable cycle-to-cycle, typical of partial misfire or injector seat erosion.
Is it safe to drive with P2350?
Usually safe for short trips, but don’t ignore it: the underlying fault can get more expensive over time.
Common causes
- Most likelyRough combustion - excessive cycle-to-cycle variation
- PossibleInjector intermittent on cylinder 9
Repair at a glance
- Difficulty
- Hard
- DIY friendly
- Best left to a mechanic
- Typical labour
- 1.5–6 h
- Emissions test
- Likely to fail
- Parts involved
- Cylinder 9 Combustion, Cylinder Pressure Sensor 9
Related codes
- P039DCylinder 1 Pressure Variation High
- P03A7Cylinder 2 Pressure Variation High
- P03B1Cylinder 3 Pressure Variation High
- P03BBCylinder 4 Pressure Variation High
- P03C5Cylinder 5 Pressure Variation High
- P03CFCylinder 6 Pressure Variation High
- P03D9Cylinder 7 Pressure Variation High
- P03E3Cylinder 8 Pressure Variation High
- P235ACylinder 10 Pressure Variation High
- P2364Cylinder 11 Pressure Variation High
- P236ECylinder 12 Pressure Variation High
- P234DCylinder 9 Pressure Too Low
- P234ECylinder 9 Pressure Too High
- P234FCylinder 9 Pressure Variation Low
- P2351Cylinder 9 Combustion Performance
- P2352Cylinder 10 Pressure Sensor Circuit
- P2353Cylinder 10 Pressure Sensor Circuit Range/Performance
Code data: OBDex open dataset (CC0). Labour times are typical ranges, not a quote.