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 - Computers and Control Systems
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Engine Control Module
Engine Control Module
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Testing and Inspection
Locations
Diagrams
Diagram Information and Instructions
How to Use Diagrams
Symbol Identification
Abbreviations
Wire Color Code Identification
Connector Views
Electrical Diagrams
