In adaptive experience bringing the duty cycle for a high pressure fuel pump

Methods and systems for the control operation of a high pressure fuel pump, which is connected to the direct injectors of an internal combustion engine is provided. During operation, the high-pressure pump, a dead zone may be present in a significant change in the operating cycle of the pump corresponds to no significant change in the fuel rail pressure. In order to work outside the dead zone, a relationship between the operating cycle of the pump and the fuel rail pressure is brought at the conclusion of multiple pump and engine policies in effect, thereby improving the operation of the high-pressure pump and the pump deterioration can be reduced.