Operation CHARM
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2008
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A8 Quattro Sedan (4E2) V8-4.2L (BVJ)
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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
Version 1
Version 2
Service and Repair
Secondary Air Injection Left Combination Valve
Version 1
Version 2
Secondary Air Injection Right Combination Valve
Version 1
Version 2
