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Home >> Isuzu >> 2007 >> Ascender RWD >> Repair and Diagnosis >> Engine Performance >> System >> Engine Control System & Fuel System - 4.2L - Introduction (2 Of 2) >> Repair Instructions >> Heated Oxygen Sensor 1 Replacement >> Removal Procedure

Removal Procedure

NOTE: Refer to Heated Oxygen Sensor Resistance Learn Reset Notice .
NOTE: Refer to Heated Oxygen and Oxygen Sensor Notice .
    Fig 1: Locating Heated Oxygen Sensor Components
    GM730852Courtesy of GENERAL MOTORS CORP.
  1. Disconnect the heated oxygen sensor (HO2S) electrical connector (1).
    2. NOTE: Refer to Excessive Force and Oxygen Sensor Notice .
  2. Remove the HO2S (2) using a J 39194-B  . See Special Tools .
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