Passat L4-1984cc 2.0L DOHC (9A) (1990)
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Fuel Pressure: Specifications
DIFFERENTIAL PRESSURE REGULATOR
pressure with harness connector disconnected should be 4.5 to 7.0 psi (0.3 to 0.5 bar) less than system pressure
DIFFERENTIAL PRESSURE REGULATOR
pressure with harness connector connected (ignition ON, control current at 100 mA) should be 19 to 23 psi (1.3 to 1.6 bar) less than system pressure
FUEL INJECTOR
opening pressure ....................................................................................................................................................................... 54 to 70 psi (3.7 to 4.8 bar)
RESIDUAL PRESSURE
after 10 minutes ........................................................................................................................................................................................... 48 psi (3.3 bar)
after 20 minutes ........................................................................................................................................................................................... 46 psi (3.2 bar)
SYSTEM PRESSURE .............................................................................................................................................................. 89 to 95 psi (6.1 to 6.6 bar)
