Fuel injection system diagram (GDI)
1 - front oxygen sensor; 2 - rear oxygen sensor; 3 - air flow sensor; 4 - intake manifold air temperature sensor; 3 - to the throttle position sensor; 6 - camshaft position sensor; 7 - crankshaft position sensor: 8 - atmospheric air pressure sensor; 9 - coolant temperature sensor; 10 - knock sensor; 11 - fuel pressure sensor; 12 - throttle position sensor; 13 - into the fuel tank; 14 - injector control unit; 13 - exhaust gas recirculation valve; 16 - Evaporative Evaporative Blow-Off Solenoid Valve; 17 - Throttle servo; 18 - adsorber; 19 - nozzle; 20 - high pressure fuel pump (HPFP); 21 - from low pressure fuel pump.
The GDI injection system is installed on cars of later years of production. A characteristic feature of the GDI injection system is that this system includes a system with electronic control of the throttle valve opening. The engine ECU determines how much the gas pedal is pressed using the accelerator pedal position sensor (APS).
After this, the engine ECU sends a signal of the set value of the throttle valve opening angle to the throttle valve controller. The electromagnetic throttle valve drive, acting on the throttle valve, opens it to the angle preset by the engine ECU.
The system maintains the idle speed at a certain level by changing the air flow rate passing through the throttle valve in accordance with the state of the engine at idle and the load on the engine at idle.
The engine ECU acts on the electromagnetic throttle actuator so that the idle speed remains constant within the required value.
[Original material on the website: www.mitsubishiman.ru]