Operation CHARM
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Oldsmobile
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1987
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Delta 88 V6-231 3.8L
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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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Relays and Modules - Computers and Control Systems
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Engine Control Module
Engine Control Module
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Description and Operation
Modes of Operation
Acceleration Mode
Battery Voltage Correction Mode
Clear Flood Mode (Port and TBI Injection)
Deceleration Mode
Fuel Cutoff Mode
Run Mode
Starting Mode (Port and TBI Injection)
Port Fuel Injection
Testing and Inspection
Chart C-1 ECM Quad Driver (QDR) Check
Checking Control Module For Bad Solder Joints
Locations
Service and Repair
Diagrams
Specifications
Technical Service Bulletins
