Daewoo Nexia

since 1994 of release

Repair and car operation


Deu Neksiya
+ Maintenance instruction
+ Maintenance
+ Engine
+ 3. Engine (two top camshafts)
+ cooling System
- Fuel and exhaust systems
   5.2. System of injection of fuel
   5.3. Modes of functioning of system
   + 5.4. Main knots of system
+ Electric chain
+ 7. Ignition system
+ 8. Electronic control unit and sensors
+ Transmission
+ 10. Five-speed transmission and main RPO MM5 broadcast
+ 11. Automatic Transmission
+ Steering
+ Running gear
+ 14. Forward suspension bracket
+ 15. Drive of forward wheels
+ 16. Back suspension bracket
+ Brake system
+ Body
+ Heating, ventilation
+ Electric equipment


8128da4b



Fuel and exhaust systems

5. Fuel and exhaust systems

5.1. General description
GENERAL INFORMATION

Arrangement of the main knots of systems of the 1,5-liter engine (SOHC) with MSVT

 

ELECTRIC CONDUCTING ЭБУ, SAFETY LOCKS AND SOCKETS
С1. ЭБУ
С2. DIAGNOSTIC SOCKET
СЗ. THE SIGNALLING DEVICE "IS REQUIRED ENGINE SERVICING" (ТТД)
С5. MASS" WIRE ЭБУ
С6. PANEL OF FUSES
С8. THE SOCKET FOR CHECK OF THE FUEL PUMP

THE KNOTS WORKING INDEPENDENTLY FROM ЭБУ
N1. SYSTEM OF COMPULSORY VENTILATION OF THE CASE (СПВК)
N2. THE TANK FOR COLLECTING PAROV OF GASOLINE (IT IS LOCATED UNDER THE MUDGUARD)
N3. THE RELAY OF PRESSURE OF OIL (IT IS LOCATED IN THE BLOCK OF CYLINDERS UNDER THE INLET PIPELINE)
N4. AIR PURIFIER

THE KNOTS WORKING TOGETHER WITH ЭБУ
1. FUEL NOZZLES
2. IDLING VALVE
3. RELAY OF THE FUEL PUMP
4. THE DISTRIBUTOR WITH SYSTEM OF REGULATION OF OПЕРEЖEHИЯ OF IGNITION
8. RELAY OF THE FAN OF SYSTEM OF COOLING
9. RELAY OF THE COMPRESSOR OF THE CONDITIONER OF AIR
10. IGNITION COIL

SENSORS
AND. THE SENSOR OF ABSOLUTE PRESSURE IN THE INLET PIPELINE (ДАД)
CENTURY. THE SENSOR OF CONCENTRATION OF OXYGEN IN THE FULFILLED GASES
PAGE. SENSOR OF PROVISION OF THE BUTTERFLY VALVE (ДДЗ)
D. THE SENSOR OF TEMPERATURE OF COOLING LIQUID (ДТЖ)
Е. THE AIR TEMPERATURE SENSOR IN THE INLET PIPELINE (ДТВ)
F. SENSOR OF SPEED OF THE CAR (ДСА)
M. THE SENSOR OF INCLUSION OF THE CONTROL LEVER THE TRANSMISSION IN THE SITUATION "PARKING" OR THE NEUTRAL (ВСН)


Fuel system


1. COVER OF THE FUEL TANK
2. BOLT
3. LAYING OF THE MOUTH OF THE TANK
4. JELLIED BRANCH PIPE OF THE TANK
5. COLLAR OF THE JELLIED BRANCH PIPE
6. BOLT
7. COLLAR
8. WORM COLLAR
9. CLAMP OF THE VENTILATING PIPELINE
10. VENTILATING PIPELINE
11. WASHER
12. NUT
13. TAPE OF FASTENING OF THE FUEL TANK
14. FINGER
15. VENTILATING PIPELINE
16. PIPELINE CLAMPS
17. COLLAR
18. VENTILATING HOSE
19. THE TANK FOR COLLECTING PAROV OF FUEL
20. NUT
21. WASHER
22. COUPLING TAPE OF THE TANK
23. TANK ARM
24. CLAMPS OF PIPELINES
25. RUBBER PLUG

26. THE FEEDING FUEL PIPELINE
27. DRAIN FUEL PIPELINE
28. BOLT
29. WASHER
30. FUEL FILTER
31. CLIP
32. FILTER ARM
33. COLLAR
34. THE FEEDING FUEL HOSE
35. DRAIN FUEL HOSE
36. FUEL PIPELINE
37. RUBBER PLUGS
38. CLIP
39. COLLAR
40. HOSE OF THE FUEL PUMP
41. COLLAR
42. BACK DRAIN FUEL HOSE
43. FUEL TANK
44. INTAKING FILTER OF THE PUMP
45. FUEL PUMP
46. LAYING OF THE FUEL PUMP
47. FUEL LEVEL SENSOR
48. FUEL LEVEL SENSOR LAYING


The engine of the car is intended for operation only on unleaded gasoline. Unleaded fuel provides normal work of system of neutralization of toxic components of the fulfilled gases, reduces deposits on spark plugs and prolongs service life of engine oil. At work on servicing or repair of fuel system it is necessary to observe the following rules.

It is necessary to disconnect always a negative wire of the storage battery except for cases when tension is necessary for testing of knots of fuel system. Before a detachment of fuel pipelines or other knots it is necessary to reduce pressure of fuel in system to the atmospheric.

At installation and dismantle of shtutserny connections of pipelines always to use two wrenches: one – for a nut inhaling, another – for union deduction. The moment of an inhaling carving connect niya it is equal 30 Nanometers.

In system of injection of fuel pipelines and shtutserny connections with round sealing rings are used.

In multipoint system of injection of fuel of a nozzle are established in collectors of each cylinder of the engine. Fuel nozzles EBU of the engine which provides giving of necessary amount of fuel on all power setting operates.

The fuel pump with an electric drive is placed in a fuel tank.

The pump supports continuous circulation of cold gasoline on feeding and drain pipelines.

For turning on of the fuel pump the relay serves. At ignition key turn the relay turns on the pump in the situation RUN (Ignition is included) on 1,5 – 2,0 with for supply of fuel to nozzles. If during this time of EBU the engine does not receive a signal from the distributor of ignition, EBU switches off the relay and the fuel pump. When receiving EBU of a signal from the relay distributor again turns on the pump.

Usually fuel tank takes place from below in a back part of the car.

For a hit exception паров gasoline in the atmosphere the tank is equipped with the ventilating pipeline connected to a tank for collecting паров.

Before carrying out any works with fuel system it is necessary to execute the following.

1) To disconnect a negative wire from the storage battery.

2) To put on goggles.

3) To pump out fuel the pump or by means of a siphon in safe capacity in the fire relation.

To prevent erroneous filling of the car by etilirovanny gasoline, the limiter of diameter of a tip of the refueling gun and a reflector are built in a mouth of a jellied branch pipe.

The fuel level sensor is established in front on the bottom of a fuel tank. In system fuel moves the pump via the pipeline located from above of a fuel tank, and merges in a tank on the bottom hose.