Fuel Pressure Control Valve
WARNING: This page is about a different car, the 2012 Ford Pickup, 2012 Ford F550 Super Duty, 2012 Ford F450 Super Duty, and 2012 Ford Cab & Chassis. However, it is still accessible from the selected car via links, so may be relevant.
The powertrain control module (PCM) controls the fuel rail pressure by activating the fuel pressure control valve which regulates the fuel pressure in the fuel rails. For additional information, refer to FUEL SYSTEM , FUEL PUMP SYSTEM . The PCM regulates fuel rail pressure by controlling the duty cycle of the fuel pressure control valve solenoid. An increase or decrease in the duty cycle maintains pressure in the fuel system or vents pressure to the fuel cooler. A high duty cycle indicates a high fuel rail pressure is being commanded. A low duty cycle indicates less pressure is being commanded. The fuel pressure control valve is mounted on the fuel rail.