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Home >> Buick >> 1991 >> Park Avenue V6-231 3.8L VIN L SFI >> Repair and Diagnosis >> Powertrain Management >> Tune-up and Engine Performance Checks >> Fuel Pressure >> Specifications

Fuel Pressure: Specifications

Ignition ON, Engine OFF 40 to 47 psi
With Vacuum Applied to Regulator 3 - 10 psi less than Ignition ON Engine OFF

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