OBD-II code · Powertrain (generic, extended)
P2379 O2 Sensor Out of Range During Deceleration Bank 2 Sensor 2
O2 Sensor Out of Range During Deceleration Bank 2 Sensor 2: the control module has detected this fault condition. (Code P2379)
Is it safe to drive with P2379?
Usually safe to drive in the short term. Get it diagnosed when convenient, sooner if the car drives differently.
Common causes
- Most likelySensor element slow or aged
- PossibleExhaust leak between catalyst and sensor
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
- 0.6–1.5 h
- Emissions test
- Likely to fail
- Parts involved
- Oxygen Sensor B2s2, Exhaust After Catalyst B2
Related codes
- P232FO2 Sensor Out of Range During Deceleration Bank 1 Sensor 2
- P239EO2 Sensor Out of Range During Deceleration Bank 1 Sensor 2
- P239FO2 Sensor Out of Range During Deceleration Bank 2 Sensor 2
- P2C65O2 Sensor Out of Range During Deceleration Bank 1 Sensor 3
- P2376Turbocharger Inlet Pressure Sensor B Circuit Low
- P2377Turbocharger Inlet Pressure Sensor B Circuit High
- P2378Turbocharger Inlet Pressure Sensor B Circuit Intermittent or Erratic
- P237AO2 Sensor Exhaust Sample Error Bank 1 Sensor 2
- P237BO2 Sensor Exhaust Sample Error Bank 2 Sensor 2
- P237CExhaust Heat Exchanger Bypass Valve A Control Circuit Open
Code data: OBDex open dataset (CC0). Labour times are typical ranges, not a quote.