Hyundai Santa Fe (2006 year). Manual - part 410

FL -250

FUEL SYSTEM

Perform this process using "INJECTOR CORRCTION" function on scantool, Refer to P1670, P1671 for more detailed
information.

VERIFICATION OF VEHICLE REPAIR

E6C81F9D

After a repair, it is essential to verify that the fault is corrected.

1.

After connecting Scantool select "DIAGNOSTIC TROUBLE CODES(DTCs)" mode.

2.

Clear recorded DTC using Scantool.

3.

Drive the vehicle within DTC "Enable conditions" in "General information".

4.

After selecting "DIAGNOSTIC TROUBLE CODES(DTCs)" mode and check if DTC is recorded again.

5.

Are any DTCs recorded ?

YES

▶

Go to the DTC guide of recorded NO. in Scantool.

NO

▶

System operates within specification.

DTC TROUBLESHOOTING PROCEDURES

FL -251

DTC P0299 TURBO/SUPER CHARGER UNDERBOOST CONDITION

COMPONENT LOCATION

E22A62B7

VGT Control Solenoid Valve

BPS & IATS #2

SCMFL6500L

GENERAL DESCRIPTION

EE6DEDEF

VGT(Variable Geometric Turbocharger) is the device which increases the efficiency of turbocharger at low rpm and lasts
optimum turbo efficiency at high rpm as varying the cross sectional area through which exhaust gas passes turbocharger
impeller. It relieves turbo lag at low speed and increse engine power generation.Engine speed, APS signal, MAFS and
Boost pressure sensor information is inputted to ECM. ECM actuates vacuum diafragm which controls exhaust gas line
as controlling VGT actuator duty to maintain optimum state of air compression.

DTC DESCRIPTION

E9634186

P0299 is set when real boost pressure is much lower than target boost pressure for more than 12 sec. at above 1750RPM
and 22mg/hub of fuel injection quantity.This code is due to poor connection of VGT solenoid valve vacuum hose, vacuum
leakage, clogging, VGT turbo charger component failure.

DTC DETECTING CONDITION

E7B34F1D

Item

Detecting Condition

Possible Cause

DTC Strategy

• Signal monitoring

Enable Conditions

• Engine running(at above 1750RPM and 22mg/hub

of fuel injection quantity)

Threshold Value

• Real boost press. is much lower than

target boost press.

Diagnostic Time

• 12 sec.

Fuel cut

NO

EGR Off

YES

Fuel Limit

YES

Fail Safe

Check

Lamp

YES

• VGT solenoid component
• VGT vacuum line
• VGT turbo charger

component

FL -252

FUEL SYSTEM

SPECIFICATION

E115195D

VGT actuator component

resistance

VGT actuator operating Hz

VGT actuator operating duty

14.7 ~ 16.1

Ω

(20

℃

)

300Hz

76% at idle, decreases as accelerating

SCHEMATIC DIAGRAM

E8203EA1

VGT CONTROL SOLENOID VALVE

C282

1

2

ECM C230-K (29)

Battery Voltage (B+)

Valve Control

Main Relay

[CIRCUIT DIAGRAM]

[HARNESS CONNECTORS]

[CONNECTION INFORMATION]

Terminal

Connected to

Function

ECM

C230-A

C230-K

1

2

4

3

6

5

8 7

12

13

16

17

18

23 22

20

21

19

27 26 25 24

28

29

30

14

9

10

11

15

33 32 31

34

37

41

42

40 39 38

35

36

43

44

47 46

49 48

50

53

56

58 57

54

51

52

55

59

60
45

1

30 29

31

32

38

39

36

37

35

33

34

40

42 41

46 45 44 43

48 47

50 49

2

3

4

6

5

8

7

12 11 10 9

13

14

15

18 17

19

16

22

25

27 26

23

20

21

24

28

51

75 74
53 52

73

79 78 77 76

80

81

83 82

84

86 85

87

89 88

90

92 91

93

94

57

69 68

70

71

64

54

55

56

61

58

59

60

63 62

65

66

67

72

29 - Valve Control

ECM (C230-K)

VGT (C282)

Main Relay

2

1

2

1

SCMFL6136L

DTC TROUBLESHOOTING PROCEDURES

FL -253

SIGNAL WAVEFORM AND DATA

E6E1F414

Fig.1

Fig.2

Fig.1) VGT actuator output waveform at 76% duty( (-)duty ). Duty decreases as boost pressure increases.
Fig.2) VGT actuator duty( (-)duty ) decreases as accelerating.

LFIG369A

MONITOR SCANTOOL DATA

E17E5543

1.

Connect Scantool to Data Link Connector (DLC).

2.

Warm engine up to normal operating temperature.

3.

Turn "OFF" electrical devices and A/C.

4.

Monitor "BOOST PRESSURE SENSOR" parameter on the Scantool.

Specification : 1000hpa ± 100hpa(VGT actuator : approx. 76%) at idle

Fig.1

Fig.2

Fig1) Monitor "BOOST PRESSURE SENSOR" parameter on the Scantool at idle after warming engine up.
         1000hpa 100hpa(approx. 1 atm) is correct value.
Fig.2) VGT actuator duty and boost pressure at acceleration is shown . If boost pressure rises and reaches certain value, 
          VGT actuator duty stops to drop and keeps steady. Releasing accelerator pedal at this moment, VGT actuator duty 
          drops to approx. 45%, then if RPM drops to idle range, duty returns to 76%. 

SCMFL6253L