Subaru Legacy 2005 Service Manual page 1488

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FUEL INJECTION (FUEL SYSTEMS)
16.Rear Oxygen Sensor
A: REMOVAL
1) Set the vehicle on a lift.
2) Disconnect the ground cable from battery.
3) Lift-up the vehicle.
4) Disconnect the connector from rear oxygen sen-
sor.
• LH side
• RH side
5) Remove the clip which holds harness.
6) Apply spray-type lubricant to the threaded por-
tion of rear oxygen sensor, and leave it for one
minute or more.
7) 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.
Rear Oxygen Sensor
• LH side
• RH side
IN-00203
B: INSTALLATION
1) Before installing the rear oxygen sensor, apply
anti-seize compound only to the threaded portion of
the rear oxygen sensor to make the next removal
easier.
Anti-seize compound:
FU-02143
SS-30 JET LUBE
CAUTION:
Never apply anti-seize compound to the protec-
tor of rear oxygen sensor.
2) Install the rear oxygen sensor.
Tightening torque:
21 N
• LH side
FU-02144
FU(H6DO)-32
m (2.1 kgf-m, 15.2 ft-lb)
FU-02145
FU-02146
FU-02145

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