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Home >> Buick >> 2013 >> Enclave Premium, AWD >> Repair and Diagnosis >> Engine Performance >> Engine Control Systems >> Engine Controls/Fuel - 3.6L (LLT) - Repair Instructions >> Repair Instructions >> Heated Oxygen Sensor Replacement - Bank 2 Sensor 2 >> Removal Procedure
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Removal Procedure

CAUTION:

Refer to Heated Oxygen and Oxygen Sensor Caution .

    Fig 1: Heated Oxygen Sensor Electrical Connector
    GM1861456Courtesy of GENERAL MOTORS COMPANY
  1. Raise and suitably support the vehicle. Refer to Lifting and Jacking the Vehicle .
  2. Remove the connector position assurance (CPA) retainer (3).
  3. Disconnect the heated oxygen sensor (HO2S) electrical connector (4) from the engine wiring harness electrical connector (1).
    4. Fig 2: Heated Oxygen Sensors And Exhaust Manifold
    GM1858130Courtesy of GENERAL MOTORS COMPANY
  4. Remove the HO2S (4) from the exhaust pipe.
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