Front Oxygen (A/F) Sensor: Installation

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

NEVER-SEEZ NSN, JET LUBE SS-30 or the equivalent

CAUTION: Never apply anti-seize compound to the 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: Identifying Front Oxygen (A/F) Sensor
Courtesy of SUBARU OF AMERICA, INC.
Install the service hole cover.

Fig 2: Identifying Service Hole Cover
Courtesy of SUBARU OF AMERICA, INC.
Lower the vehicle.
Install the front right side wheel.
Tightening torque:

100 N.m (10.2 kgf-m, 73.8 ft-lb)
Connect the engine harness to the bracket (B) using the clip (A).

Fig 3: Identifying Engine Harness Clip And Bracket
Courtesy of SUBARU OF AMERICA, INC.
Connect the connector of front oxygen (A/F) sensor.

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

Fig 5: Disconnecting Ground Cable From Battery
Courtesy of SUBARU OF AMERICA, INC.