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Home >> Subaru >> 2005 >> Outback XT, Standard >> Repair and Diagnosis >> Engine Performance >> Engine Control Systems >> Fuel Injection (Fuel Systems) (H4DOTC) >> Front Oxygen (A/F) Sensor >> Removal

Front Oxygen (A/F) Sensor: Removal

  1. Disconnect the ground cable from battery.
    Fig 1: Disconnecting Ground Cable From Battery
    G03829326Courtesy of SUBARU OF AMERICA, INC.
  2. Disconnect the connector from the front oxygen (A/F) sensor.
  3. Disconnect the engine harness fixed by clip from the bracket.
    Fig 2: Disconnecting Engine Harness Fixed By Clip From Bracket
    G03829327Courtesy of SUBARU OF AMERICA, INC.
  4. Remove the front right side wheel.
  5. Lift-up the vehicle.
  6. Remove the service hole cover.
    Fig 3: Removing Service Hole Cover
    G03829328Courtesy of SUBARU OF AMERICA, INC.
  7. Apply spray type lubricant to the threaded portion of front oxygen (A/F) sensor, and leave it for one minute or more.
  8. Remove the front oxygen (A/F) sensor.
CAUTION: When removing the oxygen (A/F) sensor, wait until exhaust pipe cools; otherwise, it will damage exhaust pipe.
Fig 4: Removing Front Oxygen (A/F) Sensor
G03829329Courtesy of SUBARU OF AMERICA, INC.
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