Project Generation Gap is plumbed for EFIFuel systems are fairly basic. Whether it is carbureted or fuel injected, the delivery system is comprised of a fuel pump (mechanical or electrical), filtering media of some sort, delivery lines, and a fuel pressure regulator to keep the system's pressure in check. Today's fuel injection fuel delivery systems can get a bit more complicated as the OEs try to find the best fuel economy, driveability, and performance while also keeping costs in line. One way this is accomplished is with a "returnless" fuel system. The typical returnless system uses a fuel rail pressure sensor, along with other typical engine sensors, to work with the ECM and a fuel pump controlled by a fuel pump driver module. What all this techno-speak means is that a computer varies the voltage to the fuel pump to control the fuel pressure and volume. As the computer sees an increased throttle input, the fuel pump voltage is increased to deliver the increased fuel needed to the engine.
Photo Gallery: Electric Fuel Pump System Install - Fueled Up - Modified Mustangs & Fords Magazine
Photo Gallery: Electric Fuel Pump System Install - Fueled Up - Modified Mustangs & Fords Magazine
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