Fuel Pressure Regulator
- Replacement fuel pressure regulator must be adjusted to establish correct pressure. Remove air filter elbow and hose. Connect tachometer leads to diagnostic connector "D1", attaching negative lead to terminal "D1"-3 and positive lead to terminal "D1"-1. See Figure
. Remove screw plug and install fuel pressure test fitting.
- Connect fuel pressure gauge to test fitting. Start engine and let idle. Turn screw at bottom of regulator to set correct pressure. Turning screw inward increases pressure and turning screw outward decreases pressure. See Fig 1
.
- Fuel pressure should be 14-15 psi (.97-1.03 kg/cm2
). Install lead sealing ball to cover regulator adjustment screw after adjusting fuel pressure. Turn ignition off. Remove measuring equipment and test fitting. Install original plug screw and air filter assembly.
Courtesy of CHRYSLER MOTORS.