Rear Oxygen Sensor - Subaru IMPREZA GD 2007 Series Manual

asieps_tobira_IM_US.book 48 ページ ２０１２年１月１７日 火曜日 午後３時４８分
FUEL INJECTION (FUEL SYSTEMS)

17.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 the rear oxygen
sensor.
5) Remove the clip by pulling out from the upper
side of crossmember.
6) Apply spray-type lubricant or equivalent to the
threaded portion of rear oxygen sensor, and leave
it for one minute or more.
Rear Oxygen Sensor
7) Remove the rear oxygen sensor.
CAUTION:
When removing the oxygen (A/F) sensor, wait
until exhaust pipe cools, because it can dam-
age the exhaust pipe.
FU-00009
B: INSTALLATION
1) Before installing rear oxygen sensor, apply the
anti-seize compound only to the threaded portion of
rear oxygen sensor. This facilitates the next remov-
al.
CAUTION:
Never apply anti-seize compound to the protec-
tor of rear oxygen sensor.
Anti-seize compound:
NEVER-SEEZ NSN, JET LUBE SS-30 or
equivalent
2) Install the rear oxygen sensor.
FU-00081
Tightening torque:
21 N·m (2.1 kgf-m, 15.2 ft-lb)
FU-00082
• AT model
FU(H4DOTC)-48
FU-00371
FU-00371
FU-01311