Pic. 7.43 a. Location of elements of the diesel fuel injection system in the engine compartment of vehicles with AGP, AQM, AYQ engines:
1 - The upper part of the intake manifold; 2 - Nozzle of the third cylinder with a sensor for moving the nozzle needle; 3 - Connecting pipe; 4 - EGR valve (mechanical); 5 - Exhaust gas recirculation valve; 6 - Relay; 7 - Temperature sensor in the intake manifold; 8 - Control unit of the fuel injection system; 9 - Brake pedal sensor; 10 - Stoplight switch; 11 - Clutch pedal sensor; 12 - Coolant temperature sensor; 13 - Bolt; 14 - Crankshaft speed sensor; 15 - O-ring; 16 - Wiring connector for the injector needle displacement sensor; 17 - Wiring connector for crankshaft speed sensor; 18 - Wiring connectors: fuel temperature sensor, fuel quantity regulator, modulating piston displacement sensor, fuel cut-off valve; 19 - Injection start valve; 20 - Fuel cut-off valve; 21 - injection pump.
Pic. 7.43 b. Location of elements of the diesel fuel injection system in the engine compartment of vehicles with AGR, ALH, ASV engines:
1 - Inlet manifold switching valve; 2 - EGR valve (mechanical); 3 - Intake manifold; 4 - Nozzle of the third cylinder with a sensor for moving the nozzle needle; 5 - Exhaust gas recirculation valve; 6 - Solenoid valve for boost pressure control; 7 - Relay; 8 - Air flow meter; 9 - Control unit of the fuel injection system; 10 - Brake pedal sensor; 11 - Stoplight switch; 12 - Clutch pedal sensor; 13 - Coolant temperature sensor; 14 - Temperature and pressure sensor in the intake manifold; 15 - Bolt; 16 - Crankshaft speed sensor; 17 - O-ring; 18 - Wiring connector for the injector needle displacement sensor; 19 - Wiring connector for crankshaft speed sensor; 20 - Wiring connectors: fuel temperature sensor, fuel quantity regulator, modulating piston displacement sensor, fuel cut-off valve; 21 - Injection start valve; 22 - Fuel cut-off valve; 23 - injection pump.
Pic. 7.44. High pressure fuel pump
1, 14, 18 - Bolts; 2 - Pulley injection pump; 3, 10 - Nuts; 4, 17 - Oil seals; 5 - The fitting of the intake fuel line (from the fuel filter); 6 - injection pump with fuel quantity regulator, modulating piston movement sensor, fuel temperature sensor; 7 - Fuel cut-off valve; 8 - Fitting of the drain fuel line; 9 - Drain fuel line to the fuel filter control valve; 11 - High pressure fuel lines; 12 - Fitting; 13 - Nozzle (third cylinder with needle displacement sensor); 15 - Retainer; 16 - Support; 19 - Fuel injection start valve; 20 - O-ring; 21 - Filter; 22 - Cover of the fuel injection timing regulator; 23 - Bushing; 24 - Bracket.
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