What does code P2164 mean?

Q: What does code P2164 mean?

Throttle/Pedal Position Sensor 'B' Maximum Stop Performance. P2164 indicates that the engine control module (ECM) has detected a performance problem with the maximum stop position of throttle or pedal position sensor 'B'. The ECM expects a specific voltage or signal when the accelerator pedal is fully released or the throttle plate is at its mechanical stop, and the sensor's output does not match that expectation within the allowed range. This typically points to a faulty sensor, wiring issue, or mechanical binding in the pedal assembly.

DTC codes / P21xx · Fuel and air metering / P2164

P2164Throttle/Pedal Position Sensor 'B' Maximum Stop Performance

P2164 indicates that the engine control module (ECM) has detected a performance problem with the maximum stop position of throttle or pedal position sensor 'B'. The ECM expects a specific voltage or signal when the accelerator pedal is fully released or the throttle plate is at its mechanical stop, and the sensor's output does not match that expectation within the allowed range. This typically points to a faulty sensor, wiring issue, or mechanical binding in the pedal assembly.

SystemPowertrain

Code typeGeneric (all makes)

SeverityMedium

Fix difficultyIntermediate

AreaFuel and air metering

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