Rear Oxygen Sensor: Installation

CAUTION: If lubricant is spilt over the exhaust pipe, wipe it off with cloth to avoid emission of smoke or causing a fire.

Install the rear oxygen sensor bracket together with the ground cord (A).
Tightening torque:

T1: 7.5 N.m (0.8 kgf-m, 5.5 ft-lb)

T2: 9.5 N.m (1.0 kgf-m, 7.0 ft-lb)

Fig 1: Rear Oxygen Sensor Bracket Bolts With Torque Specification
Courtesy of SUBARU OF AMERICA, INC.
Before installing rear oxygen sensor, apply the anti-seize compound only to the threaded portion of rear oxygen sensor to make the next removal easier.
CAUTION: Never apply anti-seize compound to the protector of rear oxygen sensor.

Preparation items:

Anti-seize compound: NEVER-SEEZ NSN, JET LUBE SS-30 or equivalent
Install the rear oxygen sensor and install the clip (A).
Tightening torque:

21 N.m (2.1 kgf-m, 15.5 ft-lb)

Courtesy of SUBARU OF AMERICA, INC.
Install the under cover front side RH.

Courtesy of SUBARU OF AMERICA, INC.
Install the under cover front. Ref. to EXTERIOR/INTERIOR TRIM>FRONT UNDER COVER>INSTALLATION .
Lower the vehicle.
Install the clip, and connect the connector (A).

Courtesy of SUBARU OF AMERICA, INC.
Connect the ground terminal to battery sensor. Ref. to REPAIR CONTENTS>NOTE>BATTERY .