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Home >> Chevrolet >> 2002 >> Blazer 4D Utility, 4WD, Part Time >> Repair and Diagnosis >> External Pages >> Different car >> Section 1347 (Engine Control System (Introduction) - 1.8L (LV6)) >> Repair Instructions >> Heated Oxygen Sensor Replacement - Position 2 (AWD) >> Installation Procedure

Installation Procedure

WARNING: This page is about a different car, the 2004 Pontiac Vibe. However, it is still accessible from the selected car via links, so may be relevant.
IMPORTANT: The HO2S 2 comes with an anti-seize coating on the new sensor. Take precautions in order to prevent removal of any of this coating prior to installation.
    Fig 1: HO2S 2, Wiring Pigtail And Body Plug (AWD)
    GM851409Courtesy of GENERAL MOTORS CORP.
  1. Install the HO2S 2 (1) into the exhaust pipe.
    2. NOTE: Refer to Component Fastener Tightening Notice in Cautions and Notices.
  2. Tighten the HO2S 2.

    Tighten:  Tighten the HO2S 2 to 44 N.m (32 lb ft).

  3. Install the HO2S 2 wiring pigtail and body plug (2) into the floor pan.
  4. Lower the vehicle.
    5. Fig 2: HO2S 2 Wiring Pigtail And Harness Connector (AWD)
    GM851408Courtesy of GENERAL MOTORS CORP.
  5. Connect the HO2S 2 wiring pigtail (2) to the HO2S harness connector (1).
  6. Relocate the carpet under the seat and the left sill plate area.
  7. Install the door sill plate and carpet trim.
  8. Install the front seat assembly. Refer to Seat Replacement - Front Bucket in Seats.
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