What does code P2414 mean?

Q: What does code P2414 mean?

O2 Sensor Exhaust Sample Error (Bank 1 Sensor 1). P2414 indicates that the engine computer has detected an exhaust sample error from the upstream oxygen sensor on bank 1, meaning the sensor's signal is not responding to exhaust changes as expected. The computer compares the sensor's output during specific test conditions and flags the code when the signal remains inactive or inconsistent with the expected exhaust oxygen content.

DTC codes / P24xx · Auxiliary emission controls / P2414

P2414O2 Sensor Exhaust Sample Error (Bank 1 Sensor 1)

P2414 indicates that the engine computer has detected an exhaust sample error from the upstream oxygen sensor on bank 1, meaning the sensor's signal is not responding to exhaust changes as expected. The computer compares the sensor's output during specific test conditions and flags the code when the signal remains inactive or inconsistent with the expected exhaust oxygen content.

SystemPowertrain

Code typeGeneric (all makes)

SeverityMedium

Fix difficultyIntermediate

AreaAuxiliary emission controls

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