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Home >> Subaru >> 2003 >> Baja Automatic >> Repair and Diagnosis >> Engine Performance >> Engine Control Systems >> Fuel Injection (Fuel Systems, H4SO) >> Rear Oxygen Sensor >> Installation
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Rear Oxygen Sensor: 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.
    1. Anti-seize compound:  SS-30 by JET LUBE
    Fig 1: Apply Anti-Seize Compound
    G02874958Courtesy of SUBARU OF AMERICA, INC.
  2. Install rear oxygen sensor.
    1. Tightening torque:  21 N.m (2.1 kgf-m, 15.2 ft-lb)
    Fig 2: Installing Rear Oxygen Sensor
    G02874959Courtesy of SUBARU OF AMERICA, INC.
  3. Lower the vehicle.
  4. Connect connector to rear oxygen sensor.
    Fig 3: Connecting Connector To Rear Oxygen Sensor
    G02874960Courtesy of SUBARU OF AMERICA, INC.
  5. Connect battery ground cable.
    Fig 4: Connecting Battery Ground Cable
    G02874961Courtesy of SUBARU OF AMERICA, INC.