Powertrain, generic (extended)

P2358 Cylinder 10 Pressure Too High

Check engine lightOn

EmissionsRelevant

Drive cycleRequired

Limp modePossible

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.

Likely causes

Engine control software misjudging combustion (update available)

Injector of cylinder 10 leaking or over-delivering

Pressure sensor reading too high

Symptoms

Warning lamp on, sometimes together with misfire codes
Hard, knocking combustion noise
Reduced power if the cylinder is switched off

Repair estimate

DifficultyMediumWorkshop job

Parts and labour€80–1,300

Time0.5–5 h

Typical range across vehicles; the real cost depends on what the testing finds.

Parts involved

cylinder pressure sensor glow plugsensor wiringengine control modulefuel injector

References: static.nhtsa.gov, static.nhtsa.gov, law.cornell.edu.