OBD-II code · Powertrain (generic, extended)
P223C O2 Sensor Pumping Current Range/Performance (Bank 1)
The pumping current of the wide-band O2 sensor on bank 1 is in electrical range but plausibility check fails. Wide-band sensors use a pumping cell that adjusts oxygen concentration in a reference chamber; the current required is proportional to lambda.
Is it safe to drive with P223C?
Usually safe to drive in the short term. Get it diagnosed when convenient, sooner if the car drives differently.
Common causes
- Most likelyPumping cell aged
- Less likelySensor element aged beyond calibration window
- Less likelySensor mounting loose - signal damping
Symptoms
- Check engine light on
- Increased fuel consumption
- Possible rough idle or hesitation
- Failed emissions test
Repair at a glance
- Difficulty
- Medium
- DIY friendly
- Often, with basic tools
- Typical labour
- 0.5–2.5 h
- Emissions test
- Likely to fail
- Parts involved
- Oxygen Sensor
Related codes
- P223DO2 Sensor Pumping Current Range/Performance (Bank 2)
- P2239O2 Sensor Pumping Current Circuit High (Bank 1 Sensor 1)
- P223AReductant Heater E Control Circuit
- P223BReductant Heater F Control Circuit
- P223EO2 Sensor Reference Resistance Out Of Range (Bank 1)
- P223FO2 Sensor Reference Resistance Out Of Range (Bank 2)
Code data: OBDex open dataset (CC0). Labour times are typical ranges, not a quote.