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Home >> Saturn >> 2004 >> L300 4D Wagon, 2.2 F >> Repair and Diagnosis >> Engine Performance >> System >> Engine Controls - 2.2L (L61) (Introduction) >> Repair Instructions >> Heated Oxygen Sensor Replacement - Position 2 >> Installation Procedure

Installation Procedure

    NOTE: Silicone based products will contaminate the HO2S. Use only a nickel based anti-seize compound that does not contain silicone.
  1. Apply a small amount of anti-seize compound SA P/N 21485279 or equivalent to the threads of the HO2S 2.
    2. NOTE: Refer to Fastener Notice in Cautions and Notices.
  2. Install the HO2S 2 using the J 39194-C  or equivalent. Tighten:  Tighten the HO2S 2 sensor-to-exhaust pipe to 45 N.m (33 lb ft).
    3. NOTE: Do Not apply any material in the HO2S-2 harness connector such as grease or dielectric compound. The wires carry air reference to the sensor in order for the sensor to operate properly.
  3. Install the HO2S 2 harness clip to the heat shield attachment bolt. Tighten:  Tighten the bolt to 4 N.m (35 lb in).
  4. Connect the HO2S 2 harness connector. Push in the connector until a click is heard, then pull back to confirm a positive engagement.
  5. Ensure the HO2S 2 harness pigtail connector is secure to the chassis.
    6. Fig 1: Removing & Installing Heated Oxygen Sensor-2
    GM932526Courtesy of GENERAL MOTORS CORP.
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