OBD-II code · Powertrain (generic, extended)
P2298 O2 Sensor Out of Range During Deceleration (Bank 2 Sensor 1)
During engine deceleration with closed throttle (DFCO), the O2 sensor on bank 2 sensor 1 should swing fully lean as the manifold fills with fresh air. Code is set when the swing does not happen — usually a slow or coated sensor.
Is it safe to drive with P2298?
Usually safe to drive in the short term. Get it diagnosed when convenient, sooner if the car drives differently.
Common causes
- Most likelySensor slow or coated
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
- P2297O2 Sensor Out of Range During Deceleration (Bank 1 Sensor 1)
- P2295Fuel Pressure Regulator 2 Control Circuit Low
- P2296Fuel Pressure Regulator 2 Control Circuit High
- P2299Brake Pedal Position / Accelerator Pedal Position Correlation
- P229AFuel Pressure Regulator B Exceeded Control Limits - Pressure Too Low
- P229BFuel Pressure Regulator B Exceeded Control Limits - Pressure Too High
Code data: OBDex open dataset (CC0). Labour times are typical ranges, not a quote.