Impreza WRX Wagon F4-2.0L DOHC Turbo (2002)
EGR Temperature Sensor: Service and Repair
Exhaust Temperature Sensor
REMOVAL
1. Disconnect the battery ground cable.
2. Remove the joint pipe.
3. Apply SUBARU CRC or its equivalent to the threaded portion of exhaust temperature sensor, and leave it for one minute or more.
SUBARU CRC (Part No. 004301003)
4. Remove the exhaust temperature sensor.
CAUTION: When removing the oxygen sensor, wait until exhaust pipe cools, otherwise it will damage exhaust pipe.
INSTALLATION
1. Before installing exhaust temperature sensor, apply the anti-seize compound only to the threaded portion of rear oxygen sensor to make the next
removal easier.
CAUTION: Never apply anti-seize compound to protector of exhaust temperature sensor.
Anti-seize compound:
SS-30 by JET LUBE
2. Install the exhaust temperature sensor.
NOTE: Align the marking (A) of exhaust temperature sensor to the marking (B) of joint pipe, and tighten the screws.
Tightening Torque: .................................................................................................................................................... 21 Nm (2.1 kgf-m, 15.2 ft. lbs)
