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TuningBot DTC Database · v4.37.15

P013B O2 Sensor Slow Response - Lean to Rich Bank 1 Sensor 2

Generic (OBD-II) interpretation in the TuningBot DTC database.

P · PowertrainEmissionsOBD2

What P013B means

P013B
O2 Sensor Slow Response - Lean to Rich Bank 1 Sensor 2 Generic · emissions Data confidence 85%

The control module detected that the O2 Sensor Slow Response responded more slowly than expected.

Symptoms

  • MIL illuminated
  • Possible increased fuel consumption
  • Possible unstable idle

Possible causes

  • Aged or contaminated oxygen sensor
  • Sensor heater circuit fault
  • Wiring or connector fault
  • Exhaust leak near the sensor
  • Mixture fault upstream of the sensor

Recommended checks

  • Read live sensor voltage/current and heater status
  • Inspect wiring and connectors
  • Check for exhaust leaks near the sensor
  • Check fuel trim values for upstream mixture faults

Related and nearby codes

How to read P013B

P

Powertrain: engine, transmission and driveline systems.

0

Generic SAE-standard code: same meaning on every make.

13B

Specific fault index within the subsystem.

Frequently asked questions about P013B

What does P013B mean?

O2 Sensor Slow Response - Lean to Rich Bank 1 Sensor 2. The control module detected that the O2 Sensor Slow Response responded more slowly than expected.

Is P013B generic or manufacturer-specific?

P013B is a generic OBD-II code: it has the same meaning on every make and model that follows the SAE standard.

Can TuningBot remove P013B at file level?

If the fault logic lives in the ECU calibration, yes: our DTC Removal file service disables the specific fault entry. Checksum correction is not included: it is a separate, optional service. Not sure whether your case qualifies? Request a free assessment and our engineers will check your ECU file.

Other file services

ECU tuningDyno-tested results by model and engine See the results →

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