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REPAIR MAINTENANCE OPERATION OF MOTOR VEHICLES
Hyundai Santa FE (2006 release)

general info. full specifications. diagnostics. hints. tips. tricks
Hyundai Santa FE
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Hyundai
Santa FE
Operation and maintenance of car
Engine
Maintenance (engines 2,0 / 2,4 l)
Mechanical (engines of 2.0 / 2.4 L).
Cooling system (engines 2,0 / 2,4 l)
Intake and exhaust systems (engines 2,0 / 2,4 l)
Maintenance (2.7 liter engine)
Mechanical (engine displacement of 2.7 liters.)
Cooling system (engines of 2.7 liters)
Lubrication System (engines of 2.7 liters)
Emission
Fuel system
Distributed fuel injection
Troubleshooting control fuel injection
The control system distributed injection of fuel
Fuel delivery system
Removal, check and installation oplivoprovodov lines and drain the fuel vapor
Troubleshooting on diagnostic codes
Tables
Transmission
Chassis
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Hit Counter by Digits


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The control system distributed injection of fuel



Location system components
Fig. 2.367. Location components: 1-sensors coolant temperature (ECT); 2 - air flow sensor and temperature sensor in the intake manifold for the model with the engine 2.4 I4; 3 - air flow sensor for models with engine 2.7 V6; 4 - temperature sensor in the intake manifold (IAT) for a model with 2.7 V6 engine; 5 - throttle position sensor (TPS); 6 - servo control idle speed (ISA); 7 - oxygen sensor heater (HO2S); 8 - the camshaft position sensor (CMP); 9 - the crankshaft position sensor (CKP); 10 - nozzle; 11 - solenoid valve canister purge (PCSV); 12 - knock sensor (KS); 13 - the gauge-switch fluid pressure in the hydraulic power steering.



The coolant temperature sensor (ECT SENSOR)

Coolant temperature
Fig. 2.368. Coolant temperature



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?�?�?????�?� ???�?? ?????????�?????? ?? ?????????�???? ?�?�???�?�???� HI-SCAN (PRO) ?????�?????�?�???�?�???� ?? ?�?�?�?�???�?� 2.32.

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???·???µ???µ?????µ ???????????‚?????»?µ?????? ???µ?¶???? ???‹???????°???? ???°?‚?‡?????°
Fig. 2.369 . ???�???�???�?????� ???????????�?????�?�?????? ???�?�???? ???�???????�???? ???�?�?�?????�


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Fig. 2.370 . ?�???�?????�?????� ???????????�?????�?� ?�???�?�?�??????


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NOTE
?�???�?? ?�???�???????�???�?? ???????�?? (?�???? ???????�?�?? ???????�?�???�???�?� ???� ?�???�?�?� 500 ????), ???????�?�?�?????? ???�?�?�?????� ???�?????????????? ???�???�?????� ?????�?????�?� ???�???� ???�?????�?????�?�?�?????????? ???�???�?????� ?????�?????�?� ???� 10%.
?????? ?????????�???�?????? ?????????�?????? ???�???????�???????�?�???? ?????????�???�?????�?�?? ?�???�?????????? ?????�???�???�?�??.
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?�?�?�?�???? ???�???�?????� ?????�?????�?� (MAF 2.7 V6)

?”?°?‚?‡???? ???°???…?????° ?????·?????…?°
Fig. 2.371 . ?�?�?�?�???? ???�???�?????� ?????�?????�?�



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?????? ???�?????�???�?????? ???????�???�?????? ???�?????????�?????????�?? ???�?�?�?????� MAF, ?????????�?????�?� ?????�?????�?????????�?? ?�???? ?????�?�??????????.

NOTE
?�???�?? ?�???�???????�???�?? ???????�?? (?�???? ???????�?�?? ???????�?�???�???�?� ???� ?�???�?�?� 500 ????), ???????�?�?�?????? ???�?�?�?????� ???�?????????????? ???�???�?????� ?????�?????�?� ???�???� ???�?????�?????�?�?�?????????? ???�???�?????� ?????�?????�?� ???� 10%.
?????? ?????????�???�?????? ?????????�?????? ???�???????�???????�?�???? ?????????�???�?????�?�?? ?�???�?????????? ?????�???�???�?�??.
???�???�?? ???�?�?�?�???? ?????????�?????? ???�???�?�?????????? ???????????�?�?? ?????????�?�?�?�?? ???? ?�?�?????�???�?�?????� ???�?�?�?�???�???�?�?? ?�???????????�?? 80??�90 ?�??.

?�?�?�?�???? ?�?�?????�???�?�?????� ?????�?????�?� ???? ???????????????? ?????�?�?�???�?????� (IAT SENSOR)
?�?�?�?�???? ?�?�?????�???�?�?????� ?????�?????�?� ???? ???????????????? ?????�?�?�???�?????� ?????�?????�?? ?? ???�?�?�???? ?�?�?????�???�???????? ???�???�?�?????? ???? ???????????????? ?????�?�?�???�?????� (MAP). ?�?�?�?�???? ?????�?????�?�???�???�?� ?????�???? ???�?�?????�????, ?????�?????�?? ???�???�?????�?� ???�???????�?�?????� ?????????�?�?� ?? ?�?�???????????????�?? ???� ?�?�?????�???�?�?????� ???????�?????�???�?�???? ???? ???????????????? ?????�?�?�???�???? ?????�?????�?�.
?� ???????�???�?�???�?????? ?? ?????????�?�???? ???�?�?�?????� ?�?�?????�???�?�?????� ?????�?????�?� ???? ???????????????? ?????�?�?�???�?????� ???�?�???�?????????�?? ?�?�???? ???????�???�?�?????? ?????????�?�?�?�?�?? ?�?????�?� ?????????�???�?????????�?�?? ???�???�?�???????????? ???????�?�?? ?�?????�?????� (?�?�?�???????� ?????�???? ???�?????�?�?????? ???????�?????????? ?�?????�?????????? ?�??????????????).

?????�?�?�?????? ?? ???????????? ???�?????????�?????????�?�??
?????? ???�?�???????�???� ?????�?????????� ?�?�???????�?�?�???? ???????�?????�?????�?? ?�?�?????� ???????????�?�???? ???�?????????�?????????�?? ?????????�?�?�?�?? ?? ???� ?�?�???�?�?? HI-SCAN (PRO) ???�?????????�???? ???????�???�?�???�???????�???? ?????? ???�?????????�?????????�??.
?????????� ???�???????�?????????�???�?? ???�?�?�???????? ?�?�?????�???�?�?????� ?????�?????�?� ???? ???????????????? ?????�?�?�???�?????� ?????�?� ??�40 ?�?? ???�?? ???�???� 120 ?�??.
?????????� ???�?????????? ?????????�?� ???� ???�?�?�?????� ?�?�?????�???�?�?????� ?????�?????�?� ???? ???????????????? ?????�?�?�???�?????� ?????�?� 0,1 ?� ???�?? ???�???� 4,8 ?� ?????? ???????????�?�???? ?????????�?�?�?�?�.

Check sensor
?? ?????????�???? ?????�???�?????�?�???� ???�???�?????�?� ???�?�?????????� ???�???????�?�?????� ???�?�?�?????�
???�???�?????�?� ???�???????�?�?????� ???�?�???? ???�???????�???? 1 ?? 2 ???�?�?�?????� ?�?�?????�???�?�?????� ?????�?????�?� ???? ???????????????? ?????�?�?�???�?????� (IAT)
?�???�?? ???�???????�?�?????� ?�???�?�???�?�?�?????? ???�?�???�?�?�?�???? ???� ???????????�?�?????????? ?�???�?�?�??????, ?�?? ?�?�???�?????�?� ???�?�?�???? ?�?�?????�???�?�?????� ?????�?????�?� ???? ???????????????? ?????�?�?�???�?????� (IAT) ?? ???�?????�.

?�?�?�?�???? ?????�???�?�?????? ???????????�?�???????? ?�?�???�???????? (TPS)

Throttle Position Sensor
Fig. 2.372 . ?�?�?�?�???? ?????�???�?�?????? ???????????�?�???????? ?�?�???�????????



?�?�?�?�???? ?????�???�?�?????? ???????????�?�???????? ?�?�???�???????? ?????�?????�?�???�???�?� ?????�???? ?????�?�???�???????�?�?? ???? ???????�???�???�???? ???????�?�???�????, ?????�?????�?? ???�???�???�?�?�?�?�???? ???????�???�?�???�???�?????? ?????�?�?�?????? ?????? ???????????�?�???????? ?�?�???�????????, ?????�?�?�???�?? ???????� ???�?????�?�???? ?�?�???�????????. ?????? ?????????????�?� ?????? ???????????�?�???????? ?�?�???�???????? ???�???????�?�?????� ?????????�?�?� ???�?�?�?????� ?????�???�?�?????? ???????????�?�???????? ?�?�???�???????? ???�???�?????�?�???? ?? ???� ???????????� ???�???�???�?????? ?�???�?�?�?????? ???�???????�?�?????? ?????????�?�?� ???�?�?�?????� ?? ?????????????�?? ?�???? ???�???�???�?????? ???�?�???�?????????�?? ?�?�???? ???????�???�?�?????? ?????????�?�?�?�?�?? ???????�???�?�???�?� ???�?�???�???? ?? ?????????????�?? ???�?????�?�???? ???????????�?�???????? ?�?�???�????????.

Check sensor
?�?�?????�?� ???�?? ?????????�?????? ?? ?????????�???? ?�?�???�?�???� HI-SCAN (PRO) ?????�?????�?�???�?�???� ?? ?�?�?�?�???�?� 2.38.

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???�?????�?????????�?� ???�?�???�?? ???�?�?�?????� ?????�???�?�?????? ???????????�?�???????? ?�?�???�????????.
?�?�?? ???????�?�?? ?? ?????????�?�?�?�?�?? 2.4 I4 ???�???�?????�?� ???????????�?????�?�?????� ???�?�???? ???�?????????? 1 (?�???�?????�?� ???�?�?�?????�) ?? ???�?????????? 2 (?????�?�?????� ???�?�?�?????�), ?� ???�?? ???????�?�?? ?? ?????????�?�?�?�?�?? 2.7 V6 ???�?�???? ???�?????????? 2 (?�???�?????�?� ???�?�?�?????�) ?? ???�?????????? 1 (?????�?�?????� ???�?�?�?????�).
???????????�?�???????� ?�???�?�?�?????�: 3,5??�6,5 ??????.

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Fig. 2.373 . ???????????�???????�?????� ???????�?�???�


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???�???�?�?????? ???�?????�???�?? ???????????�?�???????? ?�?�???�???????? ???� ?????�???????�???? ?�?�?????�?�?????? (?�???�?????�???? ?�????) ?? ?????�???????�???? ???�?????�?�???� ?????�???�?�?????� ?????????�?????�?�, ?�?�?? ???????????�?????�?�?????� ???�?�?????? ???�???�?????�?�???? ?????????????�???????�?�?????? ?????�?? ???�?????�?�???? ???????????�?�???????? ?�?�???�????????.

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Fig. 2.374 . ?�???�?????�?????� ???�?�???????????? ???�???????�?�??????



?�???�?? ???????????�?????�?�?????� ?�???�?? ???�?�???�?�?�?�???? ???� ???????????�?�?????????? ?�???�?�?�??????, ?�???�?? ???�???�?????�?�???? ???� ???�?�??????, ?�?? ?�?�???�?????�?� ???�?�?�???? ?????�???�?�?????? ???????????�?�???????? ?�?�???�????????.
???????�???� ?�?�?�???�???? ???�?�?�?????� ?????�???�?�?????? ???????????�?�???????? ?�?�???�????????: 1,5??�2,5 ???�??.

?????�?�?�?????? ?? ???????????? ???�?????????�?????????�?�??
Signal throttle position sensor is more important to control automatic transmission, rather than to the engine management system. If the throttle position sensor is faulty, there is a "shock" (jerk) shifting and other malfunctions may occur.

Servo control idle speed (ISA)
Servo control idle speed is a motor with two windings, which included individual control circuits of the electronic engine control unit.
Depending on the duty ratio of the pulse period (?�pulse duty factor?�) difference of magnetic forces of the two windings will rotate the motor shaft at a certain angle, thereby changing the flow area of the bypass channel. The bypass channel is located in the throttle body, the throttle channel in parallel in a place where the servo controller set idling speed.

Instructions for troubleshooting
The MIL is on or the engine tester HI-SCAN (Pro) with a corresponding fault code under the following condition (see. Table. 2.39).
When the primary voltage circuit to PCM or broken, or short-circuit condition.
When disturbed by the PCM control ignition system.
Open or short circuit in the servo control idle speed can be detected immediately after the ignition is switched on.

The oxygen sensor heater (HO2S 2,4 l)
The oxygen sensor detects an oxygen concentration in the exhaust gas, and accordingly changes the voltage signal that is fed to the electronic engine control unit.
If the composition of the air-fuel mixture richer than the stoichiometric ratio (i.e., if the concentration of oxygen in the exhaust small), the voltage sensor signal of about 1 V. If the air-fuel mixture leaner than the stoichiometrical ratio (i.e., if the oxygen concentration in the exhaust gas large), the voltage sensor signal approximately 0 V. On the basis of this signal, the electronic engine control unit regulates the fuel supply so that the composition of the air-fuel mixture as close as possible to the stoichiometric ratio. Oxygen sensor (zirconia) is equipped with a heater, which ensures stable operation of the sensor in all modes.

Instructions for troubleshooting
If the oxygen sensor is faulty, the exhaust gas is high content of toxic substances.
If the oxygen sensor signal (output voltage) is different from the nominal value, after a check has shown the serviceability of the sensor, the cause of the fault in the control system components composition of the air-fuel mixture:
- Failure nozzles;
- Air is drawn into the intake manifold through the damaged gasket;
- Failure of the pressure sensor in the intake manifold (MAP), the air flow sensor, air temperature sensor in the intake manifold and the coolant temperature sensor.

Check sensor
Replace the oxygen sensor if there is a malfunction.
Apply battery voltage on pins 3 and 4.

NOTE
Before checking the engine warm so that the coolant temperature has reached 80-95 ?� C.
When measured using a high-precision digital voltmeter.
Disconnect the oxygen sensor connector and measure the resistance between terminal 3 and terminal 4.

Nominal value

NOTE
Be careful when performing this operation. Random voltage supply to terminals 1 and 2, resulting in damage to the oxygen sensor.


Driving connect the sensor to a voltmeter
Fig. 2.375. Driving connect the sensor to a voltmeter


Connect a digital voltmeter with high internal resistance between terminals 1 and 2 (Fig. 2.375).
Consistently accelerating engine, measure the oxygen sensor output voltage.
If there are deviations, the potential failure of the oxygen sensor.
The tightening torque of the oxygen sensor: 50-60 Nm.

The oxygen sensor heater (HO2S 2,7 l)

The oxygen sensor connector from the harness
Fig. 2.376. The oxygen sensor connector from the harness



The oxygen sensor detects an oxygen concentration in the exhaust gas, and accordingly changes the voltage signal that is fed to the electronic engine control unit. If the composition of the air-fuel mixture richer than the stoichiometric ratio (i.e., if the concentration of oxygen in the exhaust small), the voltage sensor signal approximately 0 V.
If the air-fuel mixture leaner than the stoichiometrical ratio (i.e., if the oxygen concentration in the exhaust gases large), the voltage sensor signal about 5 V. On the basis of this signal, the electronic engine control unit regulates the fuel supply so that the composition of the air-fuel mixture has been as close as possible to the stoichiometric ratio. The oxygen sensor is equipped with a heater, which ensures stable operation of the sensor in all modes.

Instructions for troubleshooting
If the oxygen sensor is faulty, the exhaust gas is high content of toxic substances.
If the oxygen sensor signal (output voltage) is different from the nominal value, after a check has shown the serviceability of the sensor, the cause of the fault in the control system components composition of the air-fuel mixture:
- Failure nozzles;
- Air is drawn into the intake manifold through the damaged gasket;
- Failure of the air flow sensor, air temperature sensor in the intake manifold and the coolant temperature sensor.

Check with a voltmeter
Disconnect the oxygen sensor connector and measure the resistance between terminals 3 and 4.

NOTE
Before checking the engine warm so that the coolant temperature has reached 80-95 ?� C.

NOTE
Be especially careful when performing this test. Improper connection or circuit between the terminals results in a failure of the oxygen sensor.

Connect a digital voltmeter with high internal resistance between terminals 1 and 2.
Several times breaking up the engine, measure the oxygen sensor output voltage.
The presence of deviations in readings may indicate a failure of the oxygen sensor.
The tightening torque of the oxygen sensor: 40-50 Nm.

Camshaft position sensor
The operating principle of the camshaft position sensor based on the Hall effect. The sensor determines the time of arrival of the piston cylinder ?��1 and ?��4 to top dead center on the compression stroke.
On the basis of the sensor signal electronic engine control unit determines the sequence of fuel injection for individual cylinders.

Instructions for troubleshooting
If a camshaft sensor is unstable, the consequence would be a violation of a sequence of fuel injection in the cylinders, and this, in turn, leads either to the fact that the engine stall or to its unstable idling or the impossibility of its normal overclocking.

The crankshaft position sensor
The crankshaft position sensor (CKP) uses the Hall effect, which allows you to determine the position of the crankshaft (position of the piston), and then convert it into the signal and provides the signal to the electronic engine control unit (PCM). On the basis of the input PCM signal controls the timing of fuel injection into the cylinders and an ignition timing.

Instructions for troubleshooting
When in motion unexpected shocks (knocks) or sudden engine suddenly stalled, try to move the harness crankshaft position sensor. If this causes the motor to stop, check the electrical connections.
If you scroll through the engine starter, tachometer displays 0 min -1, check the crankshaft position sensor engine timing belt or the ignition system.
If the engine is idling, but indications crankshaft position sensor not correct, check the following:
- Faulty coolant temperature sensor;
- Faulty servo control idle speed;
- Improper adjustment of the idle speed of the engine.
The engine can operate without the signal of the crankshaft position sensor, but the engine can not be restarted. Once the sensor detects the TDC, the data is stored until the next engine start.

Sprayers
Injector injecting a fuel into cylinders of the engine by signals from an electronic engine control unit. The amount of fuel supplied to the injector is determined by the time during which the winding nozzle is fed a control pulse (during the open state of the needle valve nozzle). Activation of the solenoid valve, in turn, is determined by the duration of the pulse signal coming from the electronic engine control unit.

Checking injectors
The data for verification by the tester HI-SCAN (PRO) are presented in table 2.45.

NOTE
Have injector control pulse is caused by the battery charge (at least 11) when starting engine speeds not exceeding 250 min -1.

If the coolant temperature is below 0 ?� C, the electronic engine control unit (PCM) provides simultaneous fuel injection in all cylinders.
If the car is new (it is not running more than 500 km), the pulse duration of injector control approximately 10% of the nominal value.

Instructions for troubleshooting
If difficulties arise when starting a warm engine, check the absence of reduced pressure in the fuel lines and injectors for leaks.
If you scroll through the crankshaft starter motor does not start and injectors do not work, check the following conditions (non-injectors).
Faulty power supply circuit of the electronic engine control unit or circuit connection with "weight".
Malfunction of the engine control relay and the fuel pump relay.
Faulty CKP sensor and the camshaft position sensor.
If disabling one cylinder injector is no change in the engine is idling, then this cylinder follow these checks.
Check the nozzle and its harness.
Check the spark plug and spark plug wire high voltage.
Check the compression.
If the time of the injector (injector opening signal duration) differs from the nominal value, even if the audit showed serviceability nozzle and its harness, perform the following test.
Incomplete combustion in one cylinder. (Spark plugs, ignition coil, the lack of compression, etc.)
Leakproof fit the valve seat of the exhaust gas recirculation (EGR)

Injectors (2.7 V6)
Injector injecting a fuel into cylinders of the engine by signals from an electronic engine control unit. ?????�???�?�???�???? ?�?????�?????� ???????�???�?�???????? ?�???????????????? ???????�???�?�???�?�???? ?????�???�???�??, ?? ?�?�?�?�?????� ?????�?????????? ???� ???�?????�???? ?�?????????????? ???????�?�?�???? ???????�???�?????�???? ?????????�???? (?????�???? ???�?????�?�?????? ???????�?????????? ???????�???�?�?�?????? ???�?�???�???� ?�??????????????). ???????????�?�???�?�?�?????????�?? ?????�???�?�?????? ???�?�???�???????�???????�???????? ???�?�???�???�, ?? ???????? ???�?�???�????, ???????�???�?�???�?�???? ???????????�?�???�?�?�?????????�???? ?????????�?????� ?????????�?�?� ?????�???????�?�???? ???� ???�?�???�?????????????? ?�?�?????� ???????�???�?�?????? ?????????�?�?�?�?�??.

?????????�?????� ?�????????????
?�?�?????�?� ???�?? ?????????�?????? ?? ?????????�???? ?�?�???�?�???� HI-SCAN (PRO) ?????�?????�?�???�?�???� ?? ?�?�?�?�???�?� 2.475.

NOTE
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?�???�?? ?�???�???????�???�?? ???????�?? (?�???? ???????�?�?? ???????�?�???�???�?� ???� ?�???�?�?� 500 ????), ???????????�?�???�?�?�?????????�?? ?????????�?????� ???????�???�?�?????? ?�???????????????? ?????????�?????? ???� 10% ?�???�?????� ???????????�?�?????????? ?�???�?�?�??????.

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Fig. 2.377 . ?????????�?????� ?�?????????????? ?? ?????????�???? ?�?????�???????????????�



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NOTE
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Fig. 2.378 . ?????????�?????� ?�?????????????? ???� ???�?????? ???�?�???�?�??


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Fig. 2.379 . ???????????�???????�?????� ???�?�???�???� ?�??????????????


???�???�?�???? ???????????�?????????�?� ???�?�???�?? ?�?????????????? ( ??????. 2.379 ).

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Purge solenoid valve
Fig. 2.380 . Purge solenoid valve



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Knock sensor

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Fig. 2.381 . ?�?�?�?�???? ?�?�?�?????�?�????



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???????�?????�?????�?? ?�?�?????� ???????????�?�???? ???�?????????�?????????�?? ?????????�?�?�?�?? ?????????� ???�?? ???� ?�?�???�?�???� HI-SCAN (Pro) ???�???�?�?�???? ???????�???�?�???�???????�???? ?????? ???�?????????�?????????�?? ?????? ?????�?�?�???????? ?????�?� ???????�??????????.
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?????????� ?????????�?� ???�?�?�?????� ???�?�?????�?�???? ?????�?� ?????????�.

Check sensor
???�?????�?????????�?� ???�?�???�?? ???�?�?�?????� ???�?�?????�?�????.
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???????????�?�?????�?? ?�???�?�?�?????�: 800??�1600 ???�.

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Fig. 2.382 . ?�?�?�?�????-???�???�???�?�?�?�?�?? ???�???�?�?????? ?�???????????�?? ?? ?????????????????�?�???� ???????�???�?�?�?? ?????�?�???????? ???????�???�?�??????



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NOTE
The fuel pump is located inside the fuel tank, so its performance can be determined from the characteristic sound coming from the fuel tank when the fuel pump without removing the filler cap.


Checking the fuel pump
Fig. 2.384. Checking the fuel pump


Clamp the fuel hose with your fingers to feel the pulsation of the fuel in the fuel pump running (Fig. 2.384).

Check of the vacuum channel system venting fuel

Detach vacuum hose
Fig. 2.385. Detach vacuum hose


Disconnect the vacuum hose from the union of removal of fuel vapor to the throttle body and connect the vacuum pump (Fig. 2.385).
Start the engine and make sure that as the engine speed, the vacuum is constantly increasing.

NOTE
The absence of dilution is clogging the vacuum channel in the throttle body, and it needs to be cleaned.

Checking fuel pressure
Reduce the internal pressure in the fuel system and hoses:
- Disconnect the fuel pump harness side;
- Start the engine and after it stalls, switch off the ignition;
- Disconnect the negative terminal of the battery;
- Connect the fuel pump harness side.
Disconnect the fuel pipe from the fuel reservoir.

ATTENTION
Due to the presence of residual pressure in the high pressure pipe, cover with a cloth junction hose from the fuel manifold to prevent splashing of fuel.


Connecting the pressure gauge to the fuel manifold
Fig. 2.386. Connecting the pressure gauge to the fuel manifold


Assemble pressure measurement (the adapter and the meter) and connect it to the fuel pipe and the fuel manifold. Fix the assembled parts nominal pressure (Fig. 2.386).
Tightening torque gauge to the fuel manifold: 25-35 Nm.
Connect the negative terminal of the battery.
Apply battery voltage to the service concluded activate the fuel pump and fuel pump. As the fuel pressure in the system, make sure there are no leaks of fuel through the connection.
Start the engine and let it idle.

Detach vacuum hose from the pressure regulator
Fig. 2.387. Detach vacuum hose from the pressure regulator


Disconnect the vacuum hose from the pressure regulator and plug the hose stopper. Measure the fuel pressure in the system when the engine is idling (Fig. 2.387).
Standard value: 320-340 kPa.
Measure the fuel pressure when the vacuum hose is connected to the fuel pressure regulator.
Standard value: approximately 255 kPa.
If the above mentioned operations and measurements do not correspond to the nominal values, using the table below, try to determine the possible cause of the fault and carry out the necessary restoration work.
Stop the engine and observe the change in pressure in the fuel system. The pressure within the first 5 mindolzhno remain unchanged if the fuel pressure falls, pay attention to the speed of the pressure drop. Determine the possible failure of the table below, and repair.
Reduce the pressure in the fuel system.
Disconnect the hose, remove the pressure gauge.

ATTENTION
Due to the presence of residual pressure in the high pressure pipe, cover with a cloth junction hose from the fuel manifold to prevent splashing of fuel.

Replace the O ring end of the fuel hose.
Connect the fuel hose to the fuel manifold and tighten to the specified torque.
Make sure there are no leaks of fuel.

Purification Throttle

Throttle knot
Fig. 2.388. Throttle knot



Warm up the engine, then stop it.

NOTE
Disconnect the suction inlet of the throttle body, make sure you have the most dirt on the throttle. Splash solvent of the aerosol to the throttle valve to remove dirt.

Disconnect the suction inlet to the throttle body.
Stop the opening of the bypass channel in the throttle body.

NOTE
Do not allow the solvent in the bypass channel.

Splash solvent of the aerosol to the throttle valve to remove dirt. Wait approximately 5 minutes, the solvent soak dirt. Then open the throttle and wipe dry with a clean cloth sop contamination.

ATTENTION
When spraying solvent keep the throttle closed, not allowing the solvent to penetrate into the intake manifold.

Start the engine several times disperse it and leave it to idle about 1 minute.
Again, repeat the two previous operations.
Free opening of the bypass channel.
Connect the suction intake.
Disconnect the (-) terminal of the battery for at least 10 seconds.




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