OBD-II code · Powertrain (generic)
P0150 O2 Sensor Circuit Malfunction (Bank 2, Sensor 1)
Same condition as P0130 but on bank 2 of a multi-bank engine. Closed-loop fuel control on bank 2 is disabled while this fault is active.
Is it safe to drive with P0150?
Usually safe to drive in the short term. Get it diagnosed when convenient, sooner if the car drives differently.
Common causes
- Most likelyOxygen sensor aged
- PossibleSensor harness chafed
Symptoms
- Check engine light on
- Increased fuel consumption
- Possible rough idle or hesitation
- Failed emissions test
Repair at a glance
- Difficulty
- Easy
- DIY friendly
- Often, with basic tools
- Typical labour
- 0.3–1.5 h
- Emissions test
- Likely to fail
- After the fix
- A drive cycle is needed before the light stays off
- Parts involved
- Oxygen Sensor Upstream, Oxygen Sensor Wiring
Related codes
- P0130O2 Sensor Circuit Malfunction (Bank 1, Sensor 1)
- P0136O2 Sensor Circuit Malfunction (Bank 1, Sensor 2)
- P0156O2 Sensor Circuit Malfunction (Bank 2, Sensor 2)
- P014DO2 Sensor Slow Response - Lean to Rich Bank 1 Sensor 1
- P014EO2 Sensor Slow Response - Rich to Lean Bank 2 Sensor 1
- P014FO2 Sensor Slow Response - Lean to Rich Bank 2 Sensor 1
- P0151O2 Sensor Circuit Low Voltage (Bank 2, Sensor 1)
- P0152O2 Sensor Circuit High Voltage (Bank 2, Sensor 1)
- P0153O2 Sensor Circuit High Voltage (Bank 2 Sensor 1)
Code data: OBDex open dataset (CC0). Labour times are typical ranges, not a quote.