Hyundai Elantra

since 2000-2004 of release

Repair and car operation



Elantr's Hyundai
+ Petrol engines 1,6, 1,8 and 2,0 of l
+ Diesel engine of 2,0 l
+ greasing System
+ cooling System
- Fuel system
   - Fuel system of petrol engines
      Specifications
      Search and elimination of malfunctions
      Check of frequency of rotation of idling
      Check of the fuel pump
      Replacement of the fuel filter
      Replacement of the limiter of overflow (the double-thread valve)
      Fuel level sensor replacement
      Checks of system of injection of MFI
      Control lamp of malfunctions (MIL)
      Diagnostic codes of malfunctions
      Sensors
      Fuel nozzles
      Modulator of management of frequency of rotation of a cranked shaft of the engine idling (ISC)
      Sensor of speed of the car (VSS)
      Sensor of a detonation (KS)
      The lock of ignition (ST) and the switch of ranges (TR) in cars with an automatic transmission
      The lock of ignition (ST) in cars with a mechanical transmission
      Control unit engine
      Switch and relay of central air of air
      Electromagnetic valve of cleaning of the canister of system of catching паров fuels (EVAP)
      Main MFI relay
      Ignition coil
      Fuel pump
      Sensor of acceleration of APS
      Oil valve (OCV)
      Fuel highway and nozzles
      Throttle knot
      Fuel tank
      Pedal and accelerator cable
   + Fuel system of diesel engines
+ Monitoring systems and decrease in toxicity of the fulfilled gases
+ ignition System
+ System of preliminary heating of the diesel engine
+ Coupling
+ Mechanical transmission
+ Automatic transmission
+ Power shafts, forward and back axes
+ Suspension bracket
+ Steering
+ Brake system
+ Body
+ air Central air
+ Electric equipment
Electric circuits



Sensors

The sensor of absolute pressure in an inlet collector (MAR)

Arrangement of elements of fuel system in the car with engines of 1,6 l and 1,8/2,0 l

1 — the sensor of absolute pressure in an inlet collector (MAR)
2 — the sensor of temperature of soaked-up air (IAT)
3 — the sensor of temperature of cooling liquid (eats)
4 — the sensor of provision of a butterfly valve (TPS)
5 — the sensor of provision of a camshaft (CMP)
6 — the sensor of an angle of rotation of a cranked shaft (CKP)
7 — the warmed sensor of oxygen

8 — nozzles
9 — the modulator of frequency of idling (ISA)
10 — the sensor of speed of the car (VSS)
11 — the detonation sensor
12 — the blocking switch
13 — the ignition lock
14 — ЕСМ
15 — the relay of the compressor of the conditioner
16 — the electromagnetic valve of system of catching паров fuels (PCSV)
17 — the operating relay
18 — the ignition coil
19 — the diagnostic socket


1 — the sensor of absolute pressure in an inlet collector (MAR)
2 — the sensor of temperature of soaked-up air (IAT)
3 — the sensor of temperature of cooling liquid (eats)
4 — the sensor of provision of a butterfly valve (TPS)
5 — the sensor of provision of a camshaft (CMP)
6 — the sensor of an angle of rotation of a cranked shaft (CKP)
7 — the warmed sensor of oxygen

8 — nozzles
9 — the modulator of frequency of idling (ISA)
10 — the sensor of speed of the car (VSS) 11 — the detonation sensor
12 — the blocking switch
13 — the ignition lock
14 — ЕСМ
15 — the relay of the compressor of the conditioner
16 — the electromagnetic valve of system of catching паров fuels (PCSV)
17 — the operating relay
18 — the ignition coil
19 — the diagnostic socket


1 — the sensor of absolute pressure in an inlet collector (MAR)
2 — the sensor of temperature of soaked-up air (IAT)
3 — the sensor of temperature of cooling liquid (eats)
4 — the sensor of provision of a butterfly valve (TPS)
5 — the sensor of provision of a camshaft (CMP)
6 — the sensor of an angle of rotation of a cranked shaft (CKP)
7 — the warmed sensor of oxygen

8 — nozzles
9 — the modulator of frequency of idling (ISA)
10 — the sensor of speed of the car (VSS)
11 — the detonation sensor
12 — the blocking switch
13 — the ignition lock
14 — ЕСМ
15 — the relay of the compressor of the conditioner
16 — the electromagnetic valve of system of catching паров fuels (PCSV)
17 — the operating relay
18 — the ignition coil
19 — the diagnostic socket


The sensor of absolute pressure in an inlet collector represents the sensitive variable resistor. It measures pressure in an inlet collector which changes depending on operational modes of the engine and is transformed to tension.

The sensor also is used for measurement of atmospheric pressure at start of the engine and provides power setting at different heights above sea level. A food of the sensor is carried out by 5 V.Na osnovanii's tension of information from the sensor the control unit the engine regulates amount of fuel submitted to the engine, and also changes a corner of an advancing of ignition.

Check

 PERFORMANCE ORDER

  1. Connect the voltmeter between plugs 1 and 4 of the socket of the MAR sensor.

Contact 1: "Weight"
Contact 4: Positive tension

  1. Measure tension.

Target tension at the included ignition and the idle engine: 4–5 In
Target tension on frequency of idling: 0,5–2,0 In

  1. If target tension of the sensor differs from demanded, replace the sensor.

The sensor of temperature of air (IAT) arriving in the engine

The sensor of temperature of air arriving in the engine is built in the sensor of absolute pressure and represents a termistor which resistance changes depending on temperature. The ESM block considers a signal of the sensor and corrects width of the impulse submitted on nozzles therefore the amount of the fuel submitted to cylinders of the engine changes.

Sensor check

 PERFORMANCE ORDER

  1. Measure resistance between plugs 3 and 4 of the socket of the sensor.
Temperature
Resistance, kiloohm
0°C
4,5–7,5
20°C
2,0–3,0
40°C
0,7–1,6
80°C
0,2–0,4
  1. If resistance of the sensor differs from demanded, replace the sensor.

The sensor of temperature of cooling liquid (ECT)

The sensor of temperature of cooling liquid is established in a head of cylinders and supervises temperature of cooling liquid and transmits a signal to the control unit the ESM engine. As the sensor the thermoresistor which is sensitive to temperature changes is used. Electric resistance of the thermoresistor decreases at increase in temperature.

The ESM block works at the cold engine in a mode of an open loop therefore in cylinders of the engine richer toplivovozdushny mix moves and frequency of rotation of idling increases. It proceeds before achievement by the engine of normal working temperature.

Check

 PERFORMANCE ORDER

  1. Remove the sensor from an inlet collector.
  1. Heating up a vessel with water and the sensor located in it, check its resistance.
Temperature
Resistance, kiloohm
– 30°C
22,22–31,78
– 10°C
8,16–10,74
0°C
5,18–6,60
20°C
2,27–2,73
40°C
1,59–1,281
60°C
0,538–0,650
80°C
0,298–0,322
90°C
0,219–0,243
  1. If resistance of the sensor differs from demanded, replace the sensor.

Installation

 PERFORMANCE ORDER

  1. Put on a sensor carving LOCTITE 962T hermetic or equivalent.
  2. Screw the sensor and tighten it the moment given in the specification. Inhaling moment: 15–20 N • m.
  3. Connect to the sensor the socket.

Sensor of provision of a butterfly valve (TP)

The sensor of provision of a butterfly valve is the variable resistor rotating with an axis of a butterfly valve and handing over information on the basis of which the ESM block defines, when the butterfly valve is closed, completely open or is in intermediate provisions.

The sensor is rigidly connected to butterfly valve shaft. Depending on the provision of a butterfly valve resistance of the sensor changes.

Check

 PERFORMANCE ORDER

  1. Disconnect the socket from the sensor of provision of a butterfly valve.
  1. Measure resistance between plugs 2 (weight) and 3 (food) of the socket of the sensor. Resistance: 0,7–3,0 kiloohms.
  1. Connect an ohmmeter to plugs 2 (weight) and 3 (a sensor exit) the sensor socket.
  2. Slowly open a butterfly valve and be convinced that resistance of the sensor smoothly changes in proportion to butterfly valve opening.
  3. If resistance of the sensor differs from demanded or changes in steps, replace the sensor. Inhaling moment: 1,5–2,5 N • m.

Sensor of provision of a camshaft (CMP)

The sensor of provision of a camshaft develops impulses in VMT of the piston of the first cylinder in a compression step on the basis of which ESM block calculates sequence of work of system of injection of fuel.

Sensor of an angle of rotation of a cranked shaft (CKP)

The sensor of an angle of rotation of a cranked shaft, consists of a magnet and the coil and is located about a gear wreath of a flywheel. The sensor hands over to the ESM block information on an angle of rotation of a cranked shaft (position of the piston). On the basis of information of a target signal of this sensor the ESM block calculates frequency of rotation of the engine and the provision of a cranked shaft.

Check (1,6 l of I4)

 PERFORMANCE ORDER

  1. Disconnect the socket from the sensor of an angle of rotation of a cranked shaft.
  1. Measure resistance between contacts 1 and 2 sockets of the sensor. Resistance: 0,486–0,594 kiloohms at temperature 20°С.
  1. If resistance of the sensor differs from demanded, replace the sensor. A gap between a rotor and the sensor of an angle of rotation of a cranked shaft: 0,5–1,5 mm inhaling Moment: 9–11 N • m.

The warmed sensor of oxygen (HO2S)

The warmed sensor of oxygen defines concentration of oxygen in the fulfilled gases and transforms to tension which transfers to the control unit the ESM engine.

Tension on an exit of the sensor equally 500 мВ if the fuel mix is richer in relation to theoretical and tension is equal 100 мВ if a fuel mix poorer (higher concentration of oxygen in the fulfilled gases). On the basis of these data the control unit the engine changes a fuel ratio in a toplivnovozdushny mix.

Check

  1. Before check warm up the engine until the temperature of cooling liquid will not be equal 80–95°C.
  2. By the exact digital voltmeter measure target tension of the sensor.

 PERFORMANCE ORDER

  1. Disconnect the socket from the sensor of oxygen and connect the voltmeter to the socket of the sensor of oxygen.
  1. Changing frequency of rotation of a cranked shaft of the engine, will measure target tension of the sensor of oxygen. If target tension of the sensor differs from demanded, replace the sensor. Inhaling moment: 50–60 N • m.