Operation CHARM
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Chevy Truck
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1982
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Blazer 4WD L6-250 4.1L VIN D 2-bbl
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Repair and Diagnosis
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Powertrain Management
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Relays and Modules - Powertrain Management
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Relays and Modules - Computers and Control Systems
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Engine Control Module
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Technical Service Bulletins
Engine Control Module: Technical Service Bulletins
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Engine - THIS BULLETIN HAS BEEN CANCELED
ECM - Packard 32 Way Connector Identification
ECM/PCM - Damaged and/or Misdiagnosed
Engine Controls - ECM May Contain Wrong PROM
ECM - Revised Replacement Procedure