Warning. In the fuel line of the engine power system, the fuel pressure is more than 3 bar.
This pressure must be relieved before starting work on the fuel supply elements (see "Fuel Line - Pressure Relief") even if the vehicle has not been driven for a long time. Note that after depressurizing, a small amount of fuel remains in the fuel line.
Gasoline is a flammable liquid and its vapors are explosive. Therefore, when performing repair work related to the engine power system, it is necessary to strictly observe fire safety rules.
- Do not carry out work near sources of open flame and in the area of sparks.
- Equip the place of work with a fire extinguisher and / or other fire extinguishing equipment.
- Disconnect electrical equipment that can cause sparks during operation.
- Do not smoke in the work area and do not allow outsiders to smoke.
- When performing work, try not to allow fuel leakage. Spilled fuel should immediately be covered with sand and sawdust, remove the resulting mixture and ventilate the room.
- In the presence of gasoline vapors in the room, do not connect the terminals to the battery terminals, and do not turn on or off other electrical equipment in order to avoid the appearance of a spark discharge on the switch contacts.
- Do not store rags soaked in gasoline or other fuels and lubricants.
In the process of work, do not forget about safety precautions.
Upon completion of work, check that all fuel line connections are tight.
Scheme of the power supply system of the VAZ 2112 engine (l,5i): 1 - nozzles; 2 - fuel rail; 3 - diagnostic fitting of the fuel rail (for checking fuel pressure, closed with screw cap); 4 - adsorber; 5 - check valve; 6 - throttle assembly; 7 - gravity valve; 8 - safety valve; 9 - separator; 10 - filling pipe; 11 - fuel filter; 12 - fuel supply line; 13 - fuel line hose connecting the outlet pipe of the fuel module with the fuel filter; 14 - fuel module; 15 - fuel tank; 16 - drain fuel line; 17 - fuel pressure regulator
Scheme of the power supply system of the VAZ 21124 engine (1,6i): 1 - nozzles; 2 - fuel rail; 3 - diagnostic fitting of the fuel rail (for checking fuel pressure, closed with screw cap); 4 - adsorber; 5 - check valve; 6 - throttle assembly; 7 - gravity valve; 8 - separator; 9 - fuel line tube connecting the fuel filter to the tee; 10 - fuel line tube connecting the fuel filter with the outlet pipe of the fuel module; 11 - fuel module; 12 - fuel filter; 13 - filling pipe; 14 - fuel tank; 15 - hose connecting the fuel filter and the fuel module with the fuel line; 16, 18 - metal tubes of the fuel line; 17 - connecting hose; 19 - fitting for connecting the fuel rail to the fuel line