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Home >> Chevrolet >> 2001 >> Cavalier LS, 2.2 4 >> Repair and Diagnosis >> External Pages >> Different car >> Section 212 (Engine Controls - 2.2L (L61) Introduction) >> Repair Instructions >> Heated Oxygen Sensor (HO2S) Replacement (Post Catalytic Converter) >> Installation Procedure

Installation Procedure

WARNING: This page is about a different car, the 2004 Pontiac Sunfire and 2004 Chevrolet Cavalier. However, it is still accessible from the selected car via links, so may be relevant.
IMPORTANT: A special anti-seize compound is used on the HO2S 2 threads. The 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 already have the compound applied to the threads. If the sensor is removed and is to be reinstalled, the threads must be coated with an anti-seize compound before reinstallation.
  1. Coat the threads only of the HO2S 2 with anti-seize compound, if necessary.
    NOTE: Refer to FASTENER NOTICE in Cautions and Notices.
  2. Install the HO2S 2.

    Tighten:  Tighten the HO2S 2 to 41 N.m (30 lb ft).

    Fig 1: View Of HO2S 2
    GM10975Courtesy of GENERAL MOTORS CORP.
  3. Lower the vehicle.
  4. Reconnect the HO2S 2 connector, in the engine compartment.
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