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Home >> Cadillac >> 2006 >> STS Base, 3.6 7, RWD >> Repair and Diagnosis >> External Pages >> Different variant/trim >> Section 3 (Engine Control System - 4.4L - Introduction (2 Of 2)) >> Repair Instructions >> Heated Oxygen Sensor Replacement - Bank 1 Sensor 1 >> Installation Procedure

Installation Procedure

WARNING: This page is about a different variant/trim than selected.
    NOTE: Refer to Fastener Notice in Cautions and Notices.
    Fig 1: View Of HO2S - Bank 1, Sensor 1
    GM887903Courtesy of GENERAL MOTORS CORP.
  1. Install the oxygen sensor in the exhaust manifold.

    Tighten:  Tighten the heated oxygen sensor (HO2S) to 42 N.m (31 lb ft).

  2. Lower the vehicle.
    3. Fig 2: Oxygen Sensor Electrical Connector
    GM1652889Courtesy of GENERAL MOTORS CORP.
  3. Route and attach the wiring as noted during disassembly.
  4. Connect the oxygen sensor electrical connector (1) to the engine wiring harness connector at the rear of the right head.
  5. Install the wire harness to the bracket.
  6. Install the front air inlet housing panel. Refer to Air Inlet Housing Front Panel Replacement .
  7. Install the engine sight shield. Refer to Intake Manifold Sight Shield Replacement .
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