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Home >> Chevrolet >> 2006 >> Optra LS, Automatic >> Repair and Diagnosis >> External Pages >> Different car >> Section 32 (Engine Controls - 1.8L (L79) - Introduction And Mechanical Repairs) >> Repair Instructions >> Oxygen Sensor (O2S) Replacement >> Installation Procedure

Installation Procedure

WARNING: This page is about a different car, the 2005 Chevrolet Optra5 and 2005 Chevrolet Optra. However, it is still accessible from the selected car via links, so may be relevant.
    Fig 1: Identifying HO2S 1
    GM1289414Courtesy 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 serviced sensors will already have the compound applied to the threads. If a sensor is removed from any engine and is to be reinstalled, the threads must have an anti-seize compound applied before reinstallation.
  1. Coat the threads of the O2S with an anti-seize compound, if needed.
    2. NOTE: Refer to Fastener Notice in Cautions and Notices.
  2. Install the O2S into the exhaust manifold.

    Tighten:  Tighten the O2S to 42 N.m (31 lb ft)  .

  3. Connect the O2S connector.
  4. Connect the negative battery cable.
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