Index Subaru Subaru Impreza 3 / Impreza WRX / Impreza WRX STI - service repair manual 2008-2014 year
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FU(STI)-56 Rear Oxygen Sensor FUEL INJECTION (FUEL SYSTEMS) 17.Rear Oxygen Sensor A: REMOVAL 1) Disconnect the ground cable from battery. 2) Lift up the vehicle. 3) Remove the transmission under cover. 4) Disconnect the connector from the rear oxygen sensor, and remove the clip (A) holding the rear ox- ygen sensor harness. 5) Apply spray-type lubricant to the threaded por- tion of rear oxygen sensor, and leave it for one minute or more. 6) Remove the rear oxygen sensor. When removing the rear oxygen sensor, wait until exhaust pipe cools, otherwise it will dam- age the exhaust pipe. B: INSTALLATION CAUTION: If lubricant is spilt onto the exhaust pipe, wipe it off completely with cloth to avoid emission of smoke or causing a fire. 1) Before installing rear oxygen sensor, apply the anti-seize compound only to the threaded portion of rear oxygen sensor to make the next removal eas- ier. Never apply anti-seize compound to the protec- tor of rear oxygen sensor. NEVER-SEEZ NSN, JET LUBE SS-30 or equivalent 2) Install the rear oxygen sensor. 21 N·m (2.1 kgf-m, 15.5 ft-lb) 3) Connect the connector to the rear oxygen sen- sor, and hold the rear oxygen sensor harness with the clip (A). 4) Install the transmission under cover. 18 N·m (1.8 kgf-m, 13.3 ft-lb) 5) Lower the vehicle. IN-00203 FU-04602 (A) FU-05785 FU-05785 FU-04602 (A) |