In engines with common rail fuel injection system, the injection pressure is built up independently from the load and engine speed. The single-stage high-pressure pump generates a pressure of over 1800 bar, which is available to each injection nozzle on a common distribution rail. The start of injection and injection time are set by the EDC control unit by means of electrically-actuated solenoid valves. The common rail system provides high injection pressure, even at low engine speeds, and regardless of engine load. The injected fuel quantity can be divided into pilot, main, and secondary injection.