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Home >> Chevrolet >> 2011 >> Impala LTZ >> Repair and Diagnosis >> Engine Performance >> Engine Control Systems >> Engine Controls And Fuel - 3.9L - Repair Instructions >> Repair Instructions >> Heated Oxygen Sensor Replacement - Sensor 2 >> Removal Procedure
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Removal Procedure

CAUTION: Refer to Heated Oxygen and Oxygen Sensor Caution .
    Fig 1: View Of HO2S Electrical Connector
    GM1618526Courtesy of GENERAL MOTORS CORP.
  1. Raise and support the vehicle. Refer to Lifting and Jacking the Vehicle .
  2. Remove the connector position assurance (CPA) retainer (1).
  3. Disconnect the heated oxygen sensor (HO2S) electrical connector (3).
  4. Remove the HO2S electrical connector clip from the heat shield.
    5. Fig 2: Locating HO2S
    GM1618528Courtesy of GENERAL MOTORS CORP.
  5. Remove the HO2S from the catalytic converter.
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