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Removal Procedure

    Fig 1: Identifying HO2S (Bank 2 Sensor 1)
    GM1413527Courtesy of GENERAL MOTORS CORP.
    CAUTION: Refer to Fuel and Evaporative Emission Hose/Pipe Connection Cleaning Caution .
  1. Raise the vehicle. Refer to Lifting and Jacking the Vehicle .
  2. Disconnect the heated oxygen sensor (HO2S) electrical connectors. Note the harness routing and retainers for reassembly.
  3. Remove the right side catalytic converter. Refer to Catalytic Converter Replacement - Right Side (LSA) .
  4. Remove the HO2S (1).
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