Operation CHARM
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Chevy Truck
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1992
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Lumina APV V6-191 3.1L
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Repair and Diagnosis
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Powertrain Management
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Computers and Control Systems
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Engine Control Module
Engine Control Module
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Description and Operation
Testing and Inspection
Locations
Electronic Control Module (ECM)
Powertrain Control Module (PCM)
Service and Repair
Diagrams
Connector Description
Throttle Body Injection
Connector C1
Connector C2
Technical Service Bulletins
