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Home >> Porsche >> 1976 >> 912 >> Repair and Diagnosis >> Engine Performance >> Fuel Delivery >> BOSCH AFC/MPC Fuel Injection Systems >> Adjustments >> Fuel Pressure Regulator >> MPC System
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MPC System

Connect pressure gauge to fuel pressure regulator. Turn ignition on to run fuel pump. Fuel pressure should be 28-31 psi (1.97-2.18 kg/cm2 ). If not, loosen lock nut on pressure regulator and turn hex screw to adjust pressure. Turning hex screw clockwise increases pressure and counterclockwise decreases pressure.