P1150 Air/Fuel Sensor Circuit Range/Performance (Bank 2 Sensor 1)
What does P1150 mean on a Toyota?
P1150 — Air/Fuel Sensor Circuit Range/Performance (Bank 2 Sensor 1). This Toyota-enhanced code applies to Camry V6, Highlander, Sienna, Tundra with wideband A/F sensors.
Common causes of P1150
- Aging bank 2 air/fuel sensor responding slowly
- Contaminated sensor from coolant or silicone
- Exhaust leak diluting the bank 2 sample
- Bank 2 fuel control fault skewing readings
- Corroded sensor connector
How to fix P1150
- Compare bank 1 and bank 2 sensor waveforms
- Smoke test the bank 2 exhaust for leaks
- Check for coolant consumption or silicone contamination
- Fix bank 2 fuel faults first
- Replace the bank 2 sensor after excluding leaks