What does code P2894 mean?

Q: What does code P2894 mean?

Cylinder 2 Ion Current Sense Circuit. This code indicates that the powertrain control module has detected an abnormal signal from the ion current sense circuit for cylinder number two. The ion current sensing system monitors the electrical conductivity of the combustion gases to detect misfire and optimize engine performance, and this fault means the circuit's voltage or current is outside the expected range.

DTC codes / P28xx · Transmission / P2894

P2894Cylinder 2 Ion Current Sense Circuit

This code indicates that the powertrain control module has detected an abnormal signal from the ion current sense circuit for cylinder number two. The ion current sensing system monitors the electrical conductivity of the combustion gases to detect misfire and optimize engine performance, and this fault means the circuit's voltage or current is outside the expected range.

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.