Details of the fuel injection system of gasoline engines 1.4 l, 55 and 74 kW
1 - oil filler cap; 2 – the top casing of the engine with the air filter; 3 – wire holder; 4 – a bolt of fastening of a fuel stage; 5 - fitting for measuring pressure in the system; 6 - fuel rail with nozzles; 7 – a bolt of fastening of an inlet pipe of the engine; 8 – a vacuum hose of the amplifier of brakes; 9 - connecting block of the throttle valve drive; 10 - adsorber purge hose; 11 - inlet pipe; 12 - gasket; 13 – a bolt of fastening of a tube of recirculation of the fulfilled gases; 14 - tube recirculation of exhaust gases; 15 - second lambda probe (for Euro 4 engines); 16 - connecting block of the second lambda probe; 17 - lambda probe; 18 - connecting block lambda probe; 19 - crankshaft speed sensor; 20 – a bolt of fastening of the gauge; 21 - inlet pipe gasket; 22 - spring holder; 23 - connecting block; 24 - coolant temperature sensor; 25 - plug; 26 - sealing rings; 27 – a bolt of fastening of the case of the thermostat; 28 - thermostat housing; 29 - fuel line; 30 - connecting pads of the control unit; 31 - engine control unit; 32 - block bracket; 33 - bracket mounting bolts
Fuel rail with injectors for 1.4 l, 55 and 74 kW engines
1 - fuel line; 2 - screw for fastening the fuel rail; 3 - fuel rail; 4 - fitting for measuring pressure in the system; 5 - nozzle retainer; 6 - sealing ring; 7 - nozzle
1. Disconnect the wire from the terminal «-» battery.
2. Remove the upper engine cover (see subsection 2.1).
3. Disconnect the wires from the injectors.
4. Disconnect from fuel rail 3 (see fig. Fuel rail with injectors for 1.4 l, 55 and 74 kW engines) fuel line 1.
5. Remove two screws 2 securing the fuel rail.
6. Pulling the fuel rail along the axes of the injectors, remove it. In this case, the nozzles should come out of the holes in the engine intake pipe and remain on the ramp. If any injector remains in the inlet pipe, its sealing rings 6 and retainer 5 must be replaced.
7. Remove clamps 5 nozzles.
8. Pull out the injectors 7 from the fuel rail 3.
9. Replace 5 injector retainers if cracked.
10. Replace torn, cracked or loose O-rings on 6 injectors.
11. Install injectors in reverse order. At the same time, grease the sealing rings of the injectors with gasoline.