3.4.1. Breakthrough at the time of a start of motion

At the time of a start of motion the limit case of breakthrough — a failure most often takes place. The most unpleasant feelings are connected with delay of response of the engine to pressing of the accelerator pedal. Sometimes the engine at the same time even becomes deaf. The breakthrough arises at the time of the beginning of opening of a butterfly valve when determines the transition moment from the idling mode on the load mode by a signal of the sensor of provision of a butterfly valve of EBU and has to increase amount of the fuel given through nozzles. With an insufficient pressure in a fuel-supply line, even at increase in duration of injection, fuel for smooth start-off from the place is not enough.