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Home >> Chevrolet >> 2002 >> Blazer 4D Utility, 4WD, Part Time >> Repair and Diagnosis >> External Pages >> Different car >> Section 1838 (Engine Controls And Fuel - 2.2L (L61) - Introduction (2 Of 2)) >> Repair Instructions >> Engine Control Module Replacement >> Removal Procedure

Removal Procedure

WARNING: This page is about a different car, the 2007 Saturn Vue. However, it is still accessible from the selected car via links, so may be relevant.
  1. Using a scan tool, retrieve the percentage of remaining engine oil. Record the remaining engine oil life.
    2. Fig 1: Positioning Outlet Resonator/Duct Assembly
    GM897621Courtesy of GENERAL MOTORS CORP.
  2. Disconnect the negative battery cable. Refer to Battery Negative Cable Disconnection and Connection (2.2L (L61) and 3.5L (L66)) or Battery Negative Cable Disconnection and Connection (2.4L (LAT)) .
  3. Disconnect the intake air temperature (IAT) sensor.
  4. Loosen the clamp at the air cleaner assembly.
  5. Remove the push pin attachment from the outlet resonator/duct assembly to support bracket.
  6. Loosen the clamp at the throttle body assembly.
  7. Disconnect the positive crankcase ventilation (PCV) fresh air hose at the cam cover.
  8. Remove the outlet resonator/duct assembly.
  9. Remove the J 1 and J 2 connectors at the engine control module (ECM).
  10. Remove the 4 ECM attachment bolts.
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