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TuningBot DTC Database · v4.37.14

P2C65 O2 Sensor Out of Range During Deceleration Bank 1 Sensor 3

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

P · PowertrainEmissionsOBD2

What P2C65 means

P2C65
O2 Sensor Out of Range During Deceleration Bank 1 Sensor 3 Generic · emissions Data confidence 65%

The control module detected that the O2 Sensor Out of Range During Deceleration Bank 1 Sensor 3 value was outside the valid range.

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 P2C65

P

Powertrain: engine, transmission and driveline systems.

2

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

C65

Specific fault index within the subsystem.

Frequently asked questions about P2C65

What does P2C65 mean?

O2 Sensor Out of Range During Deceleration Bank 1 Sensor 3. The control module detected that the O2 Sensor Out of Range During Deceleration Bank 1 Sensor 3 value was outside the valid range.

Is P2C65 generic or manufacturer-specific?

P2C65 is a generic OBD-II code: it has the same meaning on every make and model that follows the SAE standard.

Can TuningBot remove P2C65 at file level?

If the fault logic lives in the ECU calibration, yes: our DTC Removal file service disables the specific fault entry and, where the ECU needs it, corrects the checksum too. 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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