Oxygen Sensor (O2S 1) Replacement

Wiring Diagram:

REMOVE OR DISCONNECT
1. Negative (-) battery cable.
2. O2S electrical connector.
3. Remove O2S from vehicle.

INSTALL OR CONNECT
1. O2S to vehicle. Tighten to 41 Nm (30 ft lb).
2. O2S electrical connector.
3. Negative (-) battery cable. Tighten negative (-) battery cable-to-negative (-) battery terminal retainer to 15 Nm (11 ft lb).

Legend
1. Oxygen Sensor 1 (O2S 1)
2. Heated Oxygen Sensor 2 (HO2S 2)