Electronic Fuel Injection
All models are equipped with a Bosch AFC fuel injection system. An electric fuel pump provides fuel to the fuel pressure regulator. From the regulator, fuel flows under pressure to the fuel injectors. The pressure regulator maintains uniform pressure differential at all times.
The constant pressure differential allows the ECU to control duration of injection. The ECU monitors engine running conditions and calculates injection duration for efficient engine operation.
The ECU activates all injectors at the same time. When the injectors are activated, they provide 1/2 the amount of fuel required for ideal combustion with each engine revolution. For more information, see FUEL INJECTION SYSTEM - BOSCH AFC article in FUEL SYSTEMS.