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Home >> Subaru >> 2006 >> B9 Tribeca Base >> Repair and Diagnosis >> Engine Performance >> Engine Control Systems >> Fuel Injection (Fuel Systems) (H6DO) >> Front Oxygen (A/F) Sensor >> Removal

Front Oxygen (A/F) Sensor: Removal

  1. Set the vehicle on a lift.
  2. Disconnect the ground cable from battery.
  3. Lift-up the vehicle.
  4. Disconnect the connector of front oxygen (A/F) sensor.
    • LH side
      Fig 1: Locating Front Oxygen (A/F) Sensor LH Connector
      G05018471Courtesy of SUBARU OF AMERICA, INC.
    • RH side
    Fig 2: Locating Front Oxygen (A/F) Sensor RH Connector
    G05018472Courtesy of SUBARU OF AMERICA, INC.
  5. Apply spray-type lubricant to the threaded portion of front oxygen (A/F) sensor, and leave it for one minute or more.
  6. 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 4: Locating Front Oxygen (A/F) Sensor RH
G05018474Courtesy of SUBARU OF AMERICA, INC.
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