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 JET LUBE

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

21 N.m (2.1 kgf-m, 15.2 ft-lb)
- LH side
  
  Fig 1: Installing Front Oxygen (A/F) Sensor - LH side
  Courtesy of SUBARU OF AMERICA, INC.
- RH Side
Fig 2: Installing Front Oxygen (A/F) Sensor - RH side
Courtesy of SUBARU OF AMERICA, INC.
Connect the connector of front oxygen (A/F) sensor.
- LH side
  
  Fig 3: Connecting Connector Of Front Oxygen (A/F) Sensor
  Courtesy of SUBARU OF AMERICA, INC.
- RH side
Fig 4: Connecting Connector Of Front Oxygen (A/F) Sensor
Courtesy of SUBARU OF AMERICA, INC.
Lower the vehicle.
Connect the battery ground cable to battery.

Fig 5: Connecting Battery Ground Cable To Battery

G03830270

Courtesy of SUBARU OF AMERICA, INC.