Operation CHARM
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Audi
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1998
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A8 Sedan (4D2) V8-3.7L (AEW)
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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
At idle.
approx.
3.6 bar (52 psi)
Disconnect vacuum hose (arrow) for fuel pressure regulator.
-
Fuel pressure
must increase to
approx.
4.2 bar (61 psi)
.
Residual pressure after 10 minutes
At least
3 bar (44 psi)
.