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4-12-sistema-pitaniya.html
4.12. Power supply system
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Fig. 2.85. Details of a power supply system of GA14DE and GA16DE engines: 1 — a cover of the fuel tank; 2 — laying; 3 — a bulk pipe; 4 — the fuel tank; 5 — the fuel pump; 6 — the fuel level sensor; 7 — the fuel filter; 8 — the fuel pressure regulator; 9 — a stage; 10 — a fuel nozzle; 11 — the inlet pipeline; 12 — the sensor of temperature of cooling liquid;
13 — the HORN valve; 14 — the HORN pipeline; 15 — the sensor of differential pressure; 16 — the electromagnetic valve of the HORN system; 17 — an absorber; 18 — an air inlet hose; 19 — the muffler of noise of an admission; 20 — the case of the air filter; 21 — a separator of vapors of oil; 22 — the air filter; 23 — a cover of the air filter; 24 — the case of a butterfly valve; 25 — the regulator of the accelerated idling; 26 — the idling regulator;
27 — the measuring instrument of a mass consumption of air; 28 — the sensor of provision of a butterfly valve; 29 — the drive of a temperature regulator of the raised turns
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The system includes the following basic elements: the fuel tank, the electric fuel pump shipped in a tank, the fuel pressure regulator, the idling regulator, sensors and four fuel nozzles (fig. 2.85). The steel stamped fuel tank with a capacity of 50 l fastens behind a body before a back axis. The absorber — the filter with absorbent carbon providing absorption of vapors of fuel with the subsequent their use is provided in a power supply system.
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Fig. 2.86. Placement of the fuel pump with the sensor of the index of level of fuel (the pillow of a back seat is removed): 1 — the fuel supply pipeline to nozzles; 2 — the drain pipeline; 3 — the contact socket of the fuel pump;
4 — the contact socket of the sensor of the index of level of fuel
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The rotor electrogasoline pump connected to the fuel level sensor is placed in the fuel tank. Indications of the sensor can be checked according to tab. 2.8. The pump turns on the controller by means of the relay. Food on the relay moves with a delay about 5 pages. Access to the pump with the fuel level sensor is provided via the hatch in a body floor under a back seat (fig. 2.86). Check of a power supply system of the engine can be carried out, using these tab. 2.9.
Table 2.8 Check of the Fuel Level Sensor
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The indication of the index of level of fuel in a combination of devices
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Size A *
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Resistance size between conclusions "1" and "3", Ohm
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Arrow at the beginning of a scale
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131
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78-85
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Arrow in the middle of a scale
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86
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27-35
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Arrow at the end of a scale
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36
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4-6
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* And - distance between the center of a float and the privalochny surface of the fuel level sensor.
Table 2.9 Check of a Power Supply System of the Engine
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What is checked
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Check conditions
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Result of check
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Condition of system and way of elimination of malfunction
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Chain of power supply of the fuel pump
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The switch of ignition is switched on. Socket of the fuel pump расстыкован. Measure tension between a conclusion of "1" socket and "weight"
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U = Uak.bat.
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The chain of power supply is serviceable
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U = 0
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Break in power supply chain. The safety lock No. 17 in the assembly block of interior of the car burned down. Break of a wire between a conclusion of "1" socket of the fuel pump and a conclusion "5" sockets of the relay of turning on of the fuel pump. Wire breakage, suitable to the relay of turning on of the fuel pump. Malfunction of the relay of turning on of the fuel pump
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Fuel pressure in system
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Be convinced of serviceability of fuel-supply lines. Connect the control manometer between the fuel highway and the fuel filter. "Short-circuit" conclusions "3" and "5" sockets of the relay of turning on of the fuel pump. Turn on the ignition switch
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Р = 0
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Carry out the inspection stated in the previous point
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Р <2,45 kgfs/cm2
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