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Home >> Lincoln >> 2001 >> Navigator 5.4 R, RWD >> Repair and Diagnosis >> Engine Performance >> System >> Engine Controls - Basic Diagnostic Procedures >> Fuel Systems >> Fuel Pressure >> Bi-Fuel & CNG Engines

Bi-Fuel & CNG Engines

Turn ignition off. Connect scan tool. Turn ignition on, engine off. Using scan tool, access FRPREAB PID. FRPREAB is fuel rail pressure. See FUEL PRESSURE SPECIFICATIONS .