Scheme of regulation and control of ignition, fuel, ventilation and gas emission systems of the engine 1.8–92 kW (BOSCH MOTRONIC)
1 - fuel pump relay; 2 - a tank with activated carbon; 3 - solenoid valve; 4 - fuel tank; 5 - fuel filter; 6 - electric fuel pump; 7 - adjustable exhaust gas catalyst; 8 - oxygen probe (lambda); 9 - speed sensor; 10 - knock sensor; 11 - radiator; 12 - ignition; 13 - Hall sensor; 14 - filter of the supplied air; 15 - air mass meter according to the heating wire principle; 16 - suction jet pump; 17 - vacuum brake booster; 18 - gas pedal; 19 - idle switch; 20 - potentiometer of the actual value of the throttle setting; 23 - control node; 24 – tank deaeration valve; 25 - throttle control system; 26 - pressure reducing valve; 27 - exhaust muffler
System overview of electronic engine control elements (1.8–92 kW)
1 - inductive engine speed sensor (G 28); 2 - Hall sensor (G 40); 3 - sensor for the amount of air supplied (G 70); 4 - lambda sensor (G 39); 5 – the limit switch of turns of idling (F 60), throttle potentiometer for idle adjustment (G 88), throttle potentiometer (G 69); 6 - heat-sensitive element of incoming air (G 42); 7 - heat-sensitive element of the coolant (G 62); 8 - knock sensor (G 66); 9 - fuel pump relay (J 17) and fuel pump (J 6); 10 - nozzles (from N 30 to N 33); 11 - ignition coil (N 122) with spark plugs 1 (N 128) and spark plugs 2 (N 128); 12 - solenoid valve of the tank with activated carbon (N 80); 13 - heating lambda probe (Z 19); 14 - throttle control (V 60); 15 - camshaft adjustment valve (N 205); 16 - Motronic control unit (J 220); 17 - diagnostic connector (to connect a tester)