What does code P2893 mean?

Q: What does code P2893 mean?

Cylinder 1 Ion Current Sense Circuit High. P2893 means the engine control module has detected an abnormally high voltage on the ion current sense circuit for cylinder 1, which is used to measure combustion quality through the spark plug electrode. The circuit is reporting a signal above the expected range, so the module cannot reliably interpret cylinder 1 combustion ionization.

DTC codes / P28xx · Transmission / P2893

P2893Cylinder 1 Ion Current Sense Circuit High

P2893 means the engine control module has detected an abnormally high voltage on the ion current sense circuit for cylinder 1, which is used to measure combustion quality through the spark plug electrode. The circuit is reporting a signal above the expected range, so the module cannot reliably interpret cylinder 1 combustion ionization.

SystemPowertrain

Code typeGeneric (all makes)

SeverityMedium

Fix difficultyIntermediate

AreaTransmission

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