Injection control
Injection control is performed sequentially. The injection order corresponds to the ignition order. The duration of the injection valve opening is calculated based on the sensor signals. This data is corrected based on the information from the lambda probe and thus the most favorable fuel-air ratio is formed. There is no need for manual adjustment of this ratio.
Ignition
The ignition timing of the mixture is pre-adapted to the engine operating conditions. Adjustment of the ignition distributor has a significant effect on the operation of the entire ignition and injection system, mainly on the ignition timing of the mixture. The characteristic curves of the ignition process are embedded in the control unit. Adjustment using the knock sensor ensures that the engine operates with a constantly optimal ignition timing. This ensures the most favorable fuel consumption.
Adjusting the idle speed
The idle speed is adjusted directly by the throttle valve. It is controlled by an electric motor. Further stabilization of the speed is achieved by adjusting the ignition timing. It follows that the stabilization of the idle speed is set automatically.
Fuel supply
The fuel electric pump supplies fuel from the tank through the fuel filter to the fuel distribution plate. The fuel supply pressure to the injectors is regulated. The pressure regulator maintains a constant difference of 0.3 MPa between the air pressure in the suction line and the fuel pressure. This ensures that the amount of fuel injected through the injectors does not depend on the air pressure in the suction line. The amount depends only on the duration of the injection. Unclaimed fuel is diverted back to the fuel tank through the pressure regulator.