What does code P2215 mean?

Q: What does code P2215 mean?

NOx Sensor Circuit Low Input (Bank 2 Sensor 1). P2215 means the engine computer has detected an abnormally low voltage signal from the upstream nitrogen oxide (NOx) sensor on bank 2, which is the side of the engine that does not contain cylinder number one. The sensor is responsible for reporting the concentration of nitrogen oxides in the exhaust so the computer can fine-tune the air-fuel mixture and reduce emissions.

DTC codes / P22xx · Fuel and air metering (injector circuits) / P2215

P2215NOx Sensor Circuit Low Input (Bank 2 Sensor 1)

P2215 means the engine computer has detected an abnormally low voltage signal from the upstream nitrogen oxide (NOx) sensor on bank 2, which is the side of the engine that does not contain cylinder number one. The sensor is responsible for reporting the concentration of nitrogen oxides in the exhaust so the computer can fine-tune the air-fuel mixture and reduce emissions.

SystemPowertrain

Code typeGeneric (all makes)

SeverityMedium

Fix difficultyIntermediate

AreaFuel and air metering (injector circuits)

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