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Home >> Subaru >> 2014 >> Tribeca >> Repair and Diagnosis >> Engine Performance >> Engine Control Systems >> Fuel Injection System >> Front Oxygen (A/F) Sensor >> Removal
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Front Oxygen (A/F) Sensor: Removal

  1. Disconnect the ground cable from battery.
  2. Lift up the vehicle.
  3. Disconnect the connector (A) of the front oxygen (A/F) sensor.
    Fig 1: Identifying Front Oxygen (A/F) Sensor Connector
    G08543968Courtesy of SUBARU OF AMERICA, INC.
  4. Apply spray-type lubricant to the threaded portion of front oxygen (A/F) sensor, and leave it for one minute or more.
  5. Remove the front oxygen (A/F) sensor.
    CAUTION: When removing the front oxygen (A/F) sensor, wait until exhaust pipe cools, otherwise it will damage the exhaust pipe.
    Fig 2: Identifying Front Oxygen (A/F) Sensor (RH/LH)
    G08543969Courtesy of SUBARU OF AMERICA, INC.
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