Operation CHARM
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Audi
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2001
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A4 Sedan (8D2) L4-1.8L Turbo (AWM)
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Repair and Diagnosis
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Powertrain Management
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Emission Control Systems
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Air Injection
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Air Injection Control Valve
Air Injection Control Valve
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Testing and Inspection
Combination Valve For Secondary Air Inlet
Secondary Air Injection (AIR) Solenoid Valve
Locations
Service and Repair
Diagrams
Diagram Information and Instructions
Wiring Diagram Layout
How to Read Displayed Page of Wiring Diagram
Circuit and Terminal Designations
Symbols Used In Wiring Diagrams
Wire Color Code Identification
Explanation For Troubleshooting Procedures
Wire Size Conversion
Electrical Diagrams
Specifications
Technical Service Bulletins
