Open large image in new tab »
Engine management system diagram 1.6i (EURO II): 1 - spark plug of the first cylinder; 2 - spark plug of the second cylinder; 3 - spark plug of the third cylinder; 4 - spark plug of the fourth cylinder; 5 - injector of the first cylinder; 6 - injector of the second cylinder; 7 - injector of the third cylinder; 8 - fourth cylinder injector; 9 - ignition coil; 10 - diagnostic connector block; 11 - Electronic control unit (ECU); 12 - fuel pump relay; 13 - main relay of the engine management system; 14 - mass air flow sensor; 15 - throttle position sensor; 16 - coolant temperature sensor; 17 - idle speed control; 18 - purge valve of the adsorber; 19 - crankshaft position sensor; 20 - knock sensor; 21 - oxygen concentration sensor; 22 — connector for connecting the electric fan of the engine cooling system; 23 - relay for switching on the electric fan of the engine cooling system; 24— vehicle speed sensor; 25 - to the coolant temperature gauge sensor; 26 - to the engine oil pressure sensor; 27 - to the positive terminal of the battery (a fuse is soldered into the connecting wire); 28 - camshaft position sensor; 29 - block for connection to the vehicle's electrical network; F1 - fuse for ECU and engine management system circuits; F2 - Fuel pump circuit fuse; F3 - ECU fuse; F4 - Engine cooling system electric fan fuse
Note: The connection to the fuel pump is made via the vehicle's electrical system (see "Electrical diagram of a sedan car" or "Electrical equipment diagram for hatchback and station wagon vehicles").
Note: The connection to the fuel pump is made via the vehicle's electrical system (see "Electrical diagram of a sedan car" or "Electrical equipment diagram for hatchback and station wagon vehicles").