Rear Oxygen Sensor - Subaru IMPREZA 2001 Service Manual

16.Rear Oxygen Sensor

A: REMOVAL
1) Disconnect battery ground cable.
2) Lift-up the vehicle.
3) Disconnect connector from rear oxygen sensor.
4) Apply SUBARU CRC or its equivalent to thread-
ed portion of rear oxygen sensor, and leave it for
one minute or more.
SUBARU CRC (Part No. 004301003)
5) Remove rear oxygen sensor.
CAUTION:
When removing the oxygen sensor, wait until
exhaust pipe cools, otherwise it will damage ex-
haust pipe.
REAR OXYGEN SENSOR
B: INSTALLATION
1) Before installing rear oxygen sensor, apply anti-
seize compound only to threaded portion of rear
oxygen sensor to make the next removal easier.
CAUTION:
Never apply anti-seize compound to protector
of rear oxygen sensor.
Anti-seize compound:
SS-30 by JET LUBE
2) Install rear oxygen sensor.
Tightening torque:
21 N·m (2.1 kgf-m, 15.2 ft-lb)
G6M0095
3) Connect connector to rear oxygen sensor.
EN0834
4) Lower the vehicle.
5) Connect battery ground cable.
EN0835
FU(DOHC TURBO)-43
FUEL INJECTION (FUEL SYSTEMS)
EN0835
EN0834
G6M0095