Operation CHARM
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Buick
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1989
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Regal V6-173 2.8L
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Repair and Diagnosis
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Powertrain Management
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Engine Control Module
Engine Control Module
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Description and Operation
Testing and Inspection
Initial Inspection and Diagnostic Overview
Component Tests and General Diagnostics
Locations
ECM Mini Harness
ECM Power
Electronic Control Module (ECM)
Connector Views
Underhood Block View
Service and Repair
Diagrams
Specifications
ECM Pinout/Terminal ID Charts
Computer Command Control - Port Fuel Injection
Technical Service Bulletins
