15.Front Oxygen (Nf) Sensor - Subaru 2002 IMPREZA Service Manual

FRONT OXYGEN (NF) SENSOR
FUEL INJECTION (FUEL SYSTEMS)
15.Front Oxygen (NF) Sensor
A: REMOVAL
1) Disconnect the battery ground cable.
2) Remove the solenoid valve cover
3) Disconnect the connector from the front oxygen
(NF) sensor.
4) Disconnect the engine harness fixed by clip (A)
from the bracket (6).
6) Lift-up the vehicle.
7) Remove the service hole cover
I 1
EN0832
8) Apply SUBARU CRC or its equivalent to the
threaded portion of front oxygen (NF) sensor, and
leave it for one minute or more.
SUBARU CRC (Part No. 004301003)
9) Remove the front oxygen (NF) sensor.
CAUTION:
When removing the oxygen (NF) sensor, wait
until exhaust pipe cools, otherwise it will dam-
age exhaust pipe.
5 ) Remove the front right side wheel.
FU(D0HC TURBO)-42