Front Oxygen (A/F) Sensor: Installation

Before installing front oxygen (A/F) sensor, apply anti-seize compound only to 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 front oxygen (A/F) sensor.
Tightening torque:

21 N.m (2.1 kgf-m, 15.2 ft-lb)

Fig 1: Installing Front Oxygen (A/F) Sensor (1 Of 2)
Courtesy of SUBARU OF AMERICA, INC.

Fig 2: Installing Front Oxygen (A/F) Sensor (2 Of 2)
Courtesy of SUBARU OF AMERICA, INC.
Secure harness on clip (A).
- RH side
  
  Fig 3: Securing Harness On Clip RH Side
  Courtesy of SUBARU OF AMERICA, INC.
- LH side
  
  Fig 4: Securing Harness On Clip LH Side
  Courtesy of SUBARU OF AMERICA, INC.
Install under cover.
Lower the vehicle.
Connect connector of front oxygen (A/F) sensor.

Fig 5: Connecting Connector Of Front Oxygen (A/F) Sensor
Courtesy of SUBARU OF AMERICA, INC.
Connect battery ground cable.

Fig 6: Connecting Battery Ground Cable
Courtesy of SUBARU OF AMERICA, INC.