Operation CHARM
: Car repair manuals for everyone.
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Audi
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1991
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90 Quattro 20V L5-2309cc 2.3L DOHC (7A)
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Repair and Diagnosis
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Powertrain Management
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Fuel Delivery and Air Induction
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Diagrams
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Vacuum and Vapor Hose Diagrams
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California
California
Vacuum Schematic (California Only):
