Operation CHARM
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Porsche
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1991
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928 S4 V8-4957cc 5.0L
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Repair and Diagnosis
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Relays and Modules
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Relays and Modules - Powertrain Management
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Relays and Modules - Ignition System
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Ignition Control Module
Ignition Control Module
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Description and Operation
Testing and Inspection
ECU Power Supply
Load Sensor
Service and Repair
Diagrams
Diagram Information and Instructions
How to Use Diagrams
Symbol Identification
Abbreviations
Wire Color Code Identification
Connector Views
Electrical Diagrams
