What does code P013A mean?

Q: What does code P013A mean?

O2 Sensor Slow Response - Rich to Lean Bank 1 Sensor 2. P013A means the downstream oxygen sensor on bank 1 (sensor 2) is taking too long to switch from a rich to a lean signal. The engine computer commands a lean condition and watches how quickly the sensor voltage drops; if the response is slower than the calibrated threshold, it stores this code.

DTC codes / P01xx · Fuel and air metering / P013A

P013AO2 Sensor Slow Response - Rich to Lean Bank 1 Sensor 2

P013A means the downstream oxygen sensor on bank 1 (sensor 2) is taking too long to switch from a rich to a lean signal. The engine computer commands a lean condition and watches how quickly the sensor voltage drops; if the response is slower than the calibrated threshold, it stores this code.

SystemPowertrain

Code typeGeneric (all makes)

SeverityLow

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.