OBD-II code · Powertrain (generic, extended)
P2275 O2 Sensor Signal Biased/Stuck Rich (Bank 1 Sensor 3)
O2 Sensor Signal Biased/Stuck Rich (Bank 1 Sensor 3): the control module has detected this fault condition.
Is it safe to drive with P2275?
Usually safe to drive in the short term. Get it diagnosed when convenient, sooner if the car drives differently.
Common causes
- Most likelySensor coated with carbon or fuel residue
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
- P2274O2 Sensor Signal Biased/Stuck Lean (Bank 1 Sensor 3)
- P2277O2 Sensor Signal Biased/Stuck Rich (Bank 2 Sensor 3)
- P2272O2 Sensor Signal Stuck Lean (Bank 2, Sensor 2)
- P2273O2 Sensor Signal Stuck Rich (Bank 2, Sensor 2)
- P2276O2 Sensor Signal Biased/Stuck Lean (Bank 2 Sensor 3)
- P2278O2 Sensor Signals Swapped Bank 1 Sensor 3 / Bank 2 Sensor 3
Code data: OBDex open dataset (CC0). Labour times are typical ranges, not a quote.