What does code P2897 mean?

Q: What does code P2897 mean?

Cylinder 2 Ion Current Sense Circuit High. P2897 indicates that the engine control module has detected an abnormally high voltage on the ion current sense circuit for cylinder number two, which is used to monitor combustion quality. The circuit typically produces a small signal during the spark event, and a high reading means the module sees a voltage above the expected threshold, often due to a short to voltage or a faulty sensor.

DTC codes / P28xx · Transmission / P2897

P2897Cylinder 2 Ion Current Sense Circuit High

P2897 indicates that the engine control module has detected an abnormally high voltage on the ion current sense circuit for cylinder number two, which is used to monitor combustion quality. The circuit typically produces a small signal during the spark event, and a high reading means the module sees a voltage above the expected threshold, often due to a short to voltage or a faulty sensor.

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.