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Home >> Subaru >> 2008 >> Outback XT Limited, Automatic >> Repair and Diagnosis >> Engine Performance >> Engine Control Systems >> Fuel Injection System (H4DOTC) >> Rear Oxygen Sensor >> Removal
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Rear Oxygen Sensor: Removal

  1. Set the vehicle on a lift.
  2. Disconnect the ground cable from battery.
    Fig 1: Disconnecting Ground Cable From Battery
    G05019586Courtesy of SUBARU OF AMERICA, INC.
  3. Lift the vehicle.
  4. Disconnect the connector from the rear oxygen sensor.
  5. Apply spray-type lubricant or equivalent to the threaded portion of rear oxygen sensor, and leave it for one minute or more.
  6. Remove the rear oxygen sensor.
    CAUTION: When removing the rear oxygen sensor, wait until exhaust pipe cools, otherwise it may damage the exhaust pipe.
    Fig 2: Identifying Rear Oxygen Sensor
    G05017836Courtesy of SUBARU OF AMERICA, INC.
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