Oxygen Sensor: Locations

1 - Heated Oxygen Sensor (HO2S) Bank 2 Sensor 1
2 - Heated Oxygen Sensor (HO2S) Bank 1 Sensor 1
3 - Heated Oxygen Sensor (HO2S) Bank 1 Sensor 2
4 - Heated Oxygen Sensor (HO2S) Bank 2 Sensor 2