Operation CHARM
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Audi
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2001
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S8 Quattro Sedan (4D2) V8-4.2L (AYS)
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Repair and Diagnosis
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Specifications
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Pressure, Vacuum and Temperature Specifications
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Fuel Pressure
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Pressure
Pressure
Fuel Pressure
at
idle speed
Vacuum hose connected
approx. 3.5 bar positive pressure
Vacuum hose disconnected
approx. 4.0 bar positive pressure
Residual Pressure
After 10 minutes
2.5 bar positive pressure minimum