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Home >> Chevrolet >> 2006 >> Optra LS, Standard >> Repair and Diagnosis >> Engine Performance >> System >> Engine Controls - 1.4L DOHC >> Repair Instructions >> Heated Oxygen Sensor Replacement - Position 2 >> Installation Procedure

Installation Procedure

    Fig 1: View Of Heated Oxygen Sensor And Electrical Connectors
    GM1241945Courtesy of GENERAL MOTORS CORP.
    IMPORTANT: A special anti-seize compound is used on the oxygen sensor threads. This compound consists of a liquid graphite and glass beads. The graphite will burn away, but the glass beads will remain, making the sensor easier to remove. New or service sensors will already have the compound applied to the threads. If a sensor is removed from any engine and if for any reason it is to be reinstalled, the threads must have anti-seize compound applied before reinstallation.
  1. Coat the threads of the HO2S2 with an anti-seize compound, if needed.
    2. NOTE: Refer to Fastener Notice in Cautions and Notices.
  2. Install the HO2S2.

    Tighten:  Tighten the heated oxygen sensor to 42 N.m (31 lb ft)  .

  3. Connect the electrical connector.
  4. Connect the negative battery cable.
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