P2358Cylinder 10 Pressure Too High
- Generic OBD-II code · Powertrain
- Turns on the check-engine light
- Matters for the ITP
- Can trigger limp mode
- Needs a drive cycle to confirm a fix
- How the car detects it
- P2358 indicates that the pressure determined for cylinder 10 exceeds its upper expectation. No manufacturer documents this cylinder-10 code. The closest published cases are Audi bulletins for the 2015 S3 with the 2.0 TFSI engine code CYFB: there the pressure-too-high codes of cylinders 1 to 4 (P039B00 to P03B900) showed up with misfire codes and P130A00, the entry for a cylinder the ECM has hidden, that is, switched off. The EPC lamp lit. Faulty software was to blame; an update to part number 8V0 906 259H, version 0002, cured it. So a petrol engine without glow plugs uses this family too. On a diesel with pressure sensors, a true excess points to surplus or early fuel, such as a leaking injector, or to a sensor whose output has crept upward. With the cylinder shut off, power drops noticeably.
- What you may notice
- Warning lamp on, sometimes together with misfire codes
- Hard, knocking combustion noise
- Reduced power if the cylinder is switched off
- Likely causes
- PossibleEngine control software misjudging combustion (update available)
- PossibleInjector of cylinder 10 leaking or over-delivering
- RarePressure sensor reading too high
- 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: €80 – €1,300
- Related codes
Explanation from obdex (CC0), exactly as the app shows it. Guidance only; confirm with a workshop.