Scheme of an electronic engine control system with a Sirius D4 control unit (Start): 11 - mounting block of relays and fuses in the engine compartment; 2 - power relay for the fuel pump and ignition coil; 3 - mounting block fuses in the cabin; 4 - spark plugs; 5 - ignition coil; 6 - engine control unit (ECU); 7 - crankshaft position sensor
Scheme of an electronic engine control system with a Sirius D4 control unit (continuation): I - with immobilizer; II - without immobilizer; 1 - relay mounting block in the cabin; 2 - mounting block of relays and fuses in the engine compartment; 3 — a combination of devices; 4 - annunciator of a malfunction of the engine control system; 5 - automatic transmission control unit; 6 - airbag control unit; 7 - power steering control unit; 8 - ECU; 9 - diagnostic connector; 10 - immobilizer control unit; 11 - ABS diagnostic connector; 12 - ABS control unit; 13 - control unit of the automobile anti-theft system
Scheme of an electronic engine control system with a Sirius D4 control unit (continuation): 1 - mounting block fuses in the cabin; 2 - power relay for the fuel pump and ignition coil; 3 - main relay; 4 - mounting block of relays and fuses in the engine compartment; 5 - fuel line coupling; 6 - phase sensor; 7 - fuel injector; 8 - ECU; 9 - fuel module; 10 - air conditioner compressor relay; 11 - low speed relay for the cooling system fan; 12 - high speed relay of the cooling fan; 13 - control relay fan cooling system; 14 - control unit for ventilation, heating and air conditioning; 15 - automatic control unit for air conditioning
Scheme of an electronic engine control system with a Sirius D4 control unit (with on-board diagnostics) (continuation): 1 - mounting block of relays and fuses in the engine compartment; 2 - control oxygen concentration sensor; 3 - diagnostic oxygen concentration sensor; 4 - refrigerant pressure sensor; 5 - absolute air pressure sensor in the intake manifold; 6 - intake air temperature sensor; 7 - main relay; 8 - ECU; 9 - exhaust gas recirculation valve; 10 - idle speed control unit and throttle position sensor; 11 - coolant temperature sensor; 12 - knock sensor; 13 - pressure sensor in the power steering system
Scheme of an electronic engine control system with a Sirius D4 control unit (without on-board diagnostics) (continuation): 1 - idle speed control unit and throttle position sensor; 2 - coolant temperature sensor; 3 - knock sensor; 4 - ECU; 5 - refrigerant pressure sensor; 6 - absolute air pressure sensor in the intake manifold; 7 - intake air temperature sensor; 8 - oxygen concentration sensor; 9 - pressure sensor in the power steering system
Scheme of an electronic engine control system with a Sirius D4 control unit (EURO 3, with on-board diagnostics) (continuation): 1 - mounting block of relays and fuses in the engine compartment; 2 - mounting block fuses in the cabin; 3 - main relay; 4 — a combination of devices; 5 - fuel gauge; 6 - coolant temperature gauge; 7 — the block of management of a combination of devices; 8 - exhaust gas recirculation valve; 9 - idle speed control unit and throttle position sensor; 10 - ECU; 11 - ABS control unit; 12 - fuel module
Scheme of an electronic engine control system with a Sirius D4 control unit (without on-board diagnostics) (continuation): 1 - mounting block of relays and fuses in the engine compartment; 2 - mounting block fuses in the cabin; 3 - main relay; 4 — a combination of devices; 5 - fuel gauge; 6 - coolant temperature gauge; 7 — the block of management of a combination of devices; 8 - exhaust gas recirculation valve; 9 - ECU; 10 - ABS control unit; 11 - fuel module
Scheme of an electronic engine control system with a Sirius D4 control unit (ending): 1 - mounting block fuses in the cabin; 2 - mounting block of relays and fuses in the engine compartment; 3 - main relay; 4 — a combination of devices; 5 - tachometer; 6 - speedometer; 7 — the block of management of a combination of devices; 8 - valve of the system for changing the length of the intake tract; 9 - adsorber purge valve; 10 - ECU; 11 - vehicle speed sensor with manual gearbox; 12 - automatic transmission control unit; 13 - vehicle speed sensor with automatic gearbox