Front Oxygen (A/F) Sensor: Installation

Before installing front oxygen (A/F) sensor, apply anti-seize compound only to the threaded portion of front oxygen (A/F) sensor to make the next removal easier.
Anti-seize compound:

SS-30 by JET LUBE

CAUTION: Never apply anti-seize compound to protector of front oxygen (A/F) sensor.
Install the front oxygen (A/F) sensor.
Tightening torque:

30 N.m (3.1 kgf-m, 22.1 ft-lb)

Fig 1: Installing Front Oxygen (A/F) Sensor
Courtesy of SUBARU OF AMERICA, INC.
Install the service hole cover.

Fig 2: Installing Service Hole Cover
Courtesy of SUBARU OF AMERICA, INC.
Lower the vehicle.
Install the front right side wheel.
Connect the engine harness using clips (A).

Fig 3: Connecting Engine Harness Using Clips
Courtesy of SUBARU OF AMERICA, INC.
Connect the connector of front oxygen (A/F) sensor.

Fig 4: Connecting Connector Of Front Oxygen (A/F) Sensor
Courtesy of SUBARU OF AMERICA, INC.
Connect the battery ground cable to battery.

Fig 5: Connecting Battery Ground Cable To Battery
Courtesy of SUBARU OF AMERICA, INC.