Operation CHARM
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GMC Truck
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1984
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S15/T15 4WD P/U V6-173 2.8L VIN B 2-bbl
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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
Electronic Spark Timing (EST)
General System Description
Modes of Operation
After Break-In Adaptive Functions - "E" Cell
Trouble Code Memory
Testing and Inspection
Locations
Service and Repair
Diagrams
Specifications
Technical Service Bulletins
