Electronic fuel injection system EFL four-cylinder engine
1 – additional oxygen sensor; 2 – main oxygen sensor; 3 - fuel injector; 4 - fuel pressure regulator; 5 – fuel pulsation damper; 6 - fuel filter; 7 - fuel pump; 8 – fuel tank; 9 - ignition lock; 10 - relay open circuit; 11 - control lamp; 12 - main relay EFI; 13 - battery; 14 - vehicle speed sensor; 15 - control connector; 16 - the sensor of the neutral position of the gearbox; 17 - compressor; 18 - starter; 19 - headlight switch; 20 – the switch of antifog headlights; 21 - ECM block; 22 - vacuum sensor; 23 - ignition block; 24 - switching vacuum valve VSV; 25 - ignition coil; 26 - EGR valve; 27 - exhaust gas temperature sensor of the EGR system; 28 – temperature sensor of the air entering the engine; 29 - ISC valve; 30 - throttle position sensor; 31 - knock sensor; 32 – coolant temperature sensor; 33 - TWC; 34-TWC
Electronic fuel injection system EFL six-cylinder engine
1 - crankshaft angle sensor; 2 - knock sensor 2; 3 – ECT sensor; 4 - oxygen sensor (block 2 sensor 1); 5 - fuel injectors; 6 - MAF meter; 7- "Fresh air"; 8 - IAT sensor; 9 – fuel pulsation damper; 10 - ignition block; 11 - fuel filter; 12 - fuel pump; 13 - relay open circuit; 14 - ignition lock; 15 - control switch; 16 - battery; 17 - vehicle speed sensor No. 1; 18 – PNP switch; 19 - solenoid valve; 20 - block ECU; 21 – block DLC1; 22 - stoplight switch; 23 - ECM block; 24 - fuel pressure regulator; 25 - IAC valve; 26 - switching vacuum valve VSV; 27 - idle valve; 28 - EGR vacuum modulator; 29 - valve for adjusting the air entering the engine; 30 - actuator; 31 - vacuum reservoir; 32 - ACIS system; 33 - throttle position sensor; 34 - fuel injector; 35 - camshaft position sensor; 36 - oxygen sensor (block 1 sensor 1); 37 - temperature sensor; 38 - EGR valve; 39 - oxygen sensor (block 1 sensor 2); 40 - knock sensor 1
The EFL electronic fuel injection system consists of three main systems: the fuel system, the air supply system and the electronic control system (see fig. Electronic fuel injection system EFL four-cylinder engine).