Daewoo Nexia

since 1994 of release

Repair and car operation

Deu Neksiya
+ Maintenance instruction
+ Maintenance
+ Engine
+ 3. Engine (two top camshafts)
+ cooling System
+ Toplevnaya and exhaust systems
+ Electric chain
+ 7. Ignition system
- 8. Electronic control unit and sensors
   - 8.2. Sensors
      8.2.2. The air temperature sensor in an inlet collector (pipeline) (DTV)
      8.2.3. The sensor of concentration of oxygen in the fulfilled gases (DKK)
      8.2.4. Sensor of provision of a butterfly valve (DDZ)
      8.2.5. The sensor of absolute pressure in the inlet pipeline (DAD)
      + 8.2.6. Sensor of speed of the car (DSA)
      8.2.7. Sensor of inclusion of central air of air
      8.2.8. Parking/neutral switch (an automatic transmission)
+ 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

8.2.4. Sensor of provision of a butterfly valve (DDZ)

GENERAL INFORMATION

Sensor of provision of a butterfly valve (DLZ)

1. SENSOR OF PROVISION OF THE BUTTERFLY VALVE
2. BUTTERFLY VALVE

DDZ represents a potentiometer which is established in the case of a butterfly valve and is connected with its axis. Conducting of DDZ includes a food wire with tension 5 In, "mass" and alarm wires. By tension of a signal of DDZ EBU determines the current provision of a zaslonka. At impact on an accelerator pedal DDZ signal as appropriate changes. At the closed butterfly valve tension of a signal makes about 0,5 V.Po mere of zaslonka opening tension of a signal of DDZ grows and at completely open zaslonka makes about 5 Century of EBU doses out supply of fuel depending on a corner of opening of a butterfly valve which is defined by operating influence of the driver. The gap or weakening of contacts of wires can lead to non-uniform supply of fuel in engines and unstable operation of the engine idling, as EBU принима ет an unstable signal of DDZ for a sign of movement of a butterfly valve. At refusal of DDZ or conducting of EBU establishes a code of malfunction 21. After that EBU ignores DDZ signal – operation of the engine improves. At installation of a code of malfunction 21 high frequency of idling of the engine is supported.

To remove or disconnect

PERFORMANCE ORDER

1. Electric socket.

2. Fixing screws and fixing washers.

3. Sensor.

To establish or attach

PERFORMANCE ORDER

1. To close a butterfly valve and to establish in its DDZ case.

2. To screw two fixing screws. To tighten screws of fastening of DDZ the moment of 2 Nanometers.

Prevention

By means of the scanning device to check tension of a signal of DDZ at completely closed zaslonka. Tension of a signal should not exceed 1,25 Century. Otherwise (tension is higher 1,25 In) to check existence of jamming of an axis of a butterfly valve or DDZ rychazhka. If it was not possible to find a cause of defect, to replace DDZ.

3. Electric socket.