What does code P235A mean?

Q: What does code P235A mean?

Cylinder 10 Pressure Variation High. P235A indicates that the engine control module has detected an abnormal pressure variation in cylinder 10 during the combustion cycle, typically by monitoring crankshaft speed fluctuations or cylinder pressure sensor data. The computer compares each cylinder's contribution to engine speed and flags cylinder 10 when its variation exceeds a calibrated threshold, which usually points to a mechanical or fuel delivery issue specific to that cylinder.

DTC codes / P23xx · Ignition system and misfire / P235A

P235ACylinder 10 Pressure Variation High

P235A indicates that the engine control module has detected an abnormal pressure variation in cylinder 10 during the combustion cycle, typically by monitoring crankshaft speed fluctuations or cylinder pressure sensor data. The computer compares each cylinder's contribution to engine speed and flags cylinder 10 when its variation exceeds a calibrated threshold, which usually points to a mechanical or fuel delivery issue specific to that cylinder.

SystemPowertrain

Code typeGeneric (all makes)

SeverityMedium

Fix difficultyProfessional

AreaIgnition system and misfire

Guidance is general and written for all OBD-II vehicles. Exact tests and values vary by model, so confirm the fault before replacing parts.