Oxygen Sensor: Locations

1. Bank 1 Sensor 2 HO2S
2. Bank 1 Sensor 1 HO2S
3. Bank 1 Sensor 1 HO2S Threaded Boss
4. Left Bank Catalytic Converter
5. Bank 1 Sensor 2 HO2S Threaded Boss
6. Bank 2 Sensor 1 HO2S Threaded Boss
7. Right Side Frame Rail
8. Right Bank Catalytic Converter
9. Bank 2 Sensor 2 HO2S Threaded Boss
10. Bank 2 Sensor 2 HO2S
11. Bank 2 Sensor 1 HO2S