Subaru Legacy IV (2008 year). Service manual — part 453
FU(H6DO)-31
Oil Temperature Sensor
FUEL INJECTION (FUEL SYSTEMS)
14.Oil Temperature Sensor
A: REMOVAL
1) Remove the collector cover.
2) Disconnect the ground cable from battery.
3) Remove the air intake chamber. <Ref. to
IN(H6DO)-7, REMOVAL, Air Intake Chamber.>
4) Disconnect the connector from the oil tempera-
ture sensor.
5) Remove the oil temperature sensor.
B: INSTALLATION
Install in the reverse order of removal.
Tightening torque:
22 N·m (2.2 kgf-m, 16.2 ft-lb)
IN-00203
FU-02138
FU(H6DO)-32
Front Oxygen (A/F) Sensor
FUEL INJECTION (FUEL SYSTEMS)
15.Front Oxygen (A/F) Sensor
A: REMOVAL
1) Set the vehicle on a lift.
2) Disconnect the ground cable from the battery.
3) Lift up the vehicle.
4) Disconnect the connector of front oxygen (A/F)
sensor.
• LH side
• RH side
5) Apply spray-type lubricant to the threaded por-
tion of front oxygen (A/F) sensor, and leave it for
one minute or more.
6) Remove the front oxygen (A/F) sensor.
CAUTION:
When removing the front oxygen (A/F) sensor,
wait until exhaust pipe cools, otherwise it will
damage the exhaust pipe.
• LH side
• RH side
IN-00203
FU-02139
FU-02140
FU-02141
FU-02142
FU(H6DO)-33
Front Oxygen (A/F) Sensor
FUEL INJECTION (FUEL SYSTEMS)
B: INSTALLATION
CAUTION:
If lubricant is spilt onto the exhaust pipe, wipe it
off with cloth to avoid emission of smoke or
causing a fire.
1) Before installing front oxygen (A/F) sensor, ap-
ply anti-seize compound only to the threaded por-
tion of front oxygen (A/F) sensor to make the next
removal easier.
CAUTION:
Never apply anti-seize compound to the protec-
tor of front oxygen (A/F) sensor.
Anti-seize compound:
NEVER-SEEZ NSN, JET LUBE SS-30 or
equivalent
2) Install the front oxygen (A/F) sensor.
Tightening torque:
21 N·m (2.1 kgf-m, 15.5 ft-lb)
• LH side
• RH side
3) Connect the connector of front oxygen (A/F)
sensor.
• LH side
• RH side
4) Lower the vehicle.
5) Connect the ground cable to battery.
FU-02141
FU-02142
FU-02139
FU-02140
IN-00203
FU(H6DO)-34
Rear Oxygen Sensor
FUEL INJECTION (FUEL SYSTEMS)
16.Rear Oxygen Sensor
A: REMOVAL
1) Set the vehicle on a lift.
2) Disconnect the ground cable from the battery.
3) Lift up the vehicle.
4) Disconnect the connector from rear oxygen sen-
sor.
• LH side
• RH side
5) Remove the clip holding the 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.
• LH side
• RH side
IN-00203
FU-02143
FU-02144
FU-02145
FU-02146
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