Subaru LEGACY 2004 - Rear Oxygen Sensor

FU(H4SO 2.0)-33
FUEL INJECTION (FUEL SYSTEMS)
Rear Oxygen Sensor
14.Rear Oxygen Sensor
A: REMOVAL
1) Disconnect the ground cable from battery.
2) Lift-up the vehicle.
3) Disconnect the connector from rear oxygen sen-
sor.
4) Remove the clip holding harness.
5) Apply spray-type lubricant to the threaded por-
tion of rear oxygen sensor, and leave it for one
minute or more.
6) Remove the rear oxygen sensor.
CAUTION:
When removing the rear oxygen sensor, wait
until exhaust pipe cools, otherwise it will dam-
age the exhaust pipe.
B: INSTALLATION
1) Before installing rear oxygen sensor, apply anti-
seize compound only to the threaded portion of
rear oxygen sensor to make the next removal eas-
ier.
Anti-seize compound:
SS-30 JET LUBE
CAUTION:
Never apply anti-seize compound to the pro-
tector of rear oxygen sensor.
2) Install the rear oxygen sensor.
Tightening torque:
21 N
⋅ m (2.1 kgf-m, 15.2 ft-lb)
3) Hold the harness with clip.
4) Connect the connector to rear oxygen sensor.
5) Lower the vehicle.
6) Connect the battery ground cable to battery.
IN-00203
FU-01116
FU-01117
FU-01117
FU-01116
IN-00203