Content .. 351 352 353 354 ..

Hyundai Santa Fe (2006 year). Manual - part 353

FL -22

FUEL SYSTEM

(SYMPTOM 19) FUEL SMELLS

Possible Cause

• Fuel pump hose supply cut
• Fuel return hose of injector cut
• Leakage at the Fuel pressure regulator valve

• Leakage at fuel temperature sensor
• Leakage at the spacers
• High pressure leakage

(SYMPTOM 20) THE ENGINE COLLAPSES AT TAKE OFF

Possible Cause

• Accelerator position sensor blocked
• Incorrect state of the electrical pack devices
• Air filter sealed
• Inversion of low pressure fuel connections
• Fuel filter not adapted
• Fuel quality/presence of water
• Air ingress in the low pressure fuel circuit
• Sealed fuel filter

• Catalytic converter sealed or damaged
• Clutch not well set
• Intermittent fault connection
• Drift of the rail pressure sensor not detected
• Fuel pressure regulator valve contaminated,

stuck, jammed

• Rail pressure regulator valve contaminated,

stuck, jammed

• Gasoline in fuel
• Bug software or hardware fault not detected

(SYMPTOM 21) THE ENGINE DOES NOT STOP

Possible Cause

• Oil suction (engine racing)
• Bug software or hardware fault not detected

(SYMPTOM 22) DIFFERENT MECHANICAL NOISES

Possible Cause

• Buzzer noise (discharge by the injectors)
• Clip broken (vibrations, resonance, noises)
• Incorrect state of the electrical pack devices
• Catalytic converter sealed or damaged
• Air inlet circuit open

• Bad flanging of the injector
• Clutch not well set
• Turbo charger damagedValve clearance
• Valve clearance

DIESEL CONTROL SYSTEM

FL -23

DIESEL CONTROL SYSTEM

DESCRIPTION

E02A4912

If the disel control system components (sensors, ECM, in-
jector, etc.) fail, interruption to the fuel supply or failure to
supply the proper amount of fuel for variousengine operat-
ing conditions will result. The following situations may be
encountered

Engine is hard to start or does not start at all.

Nstable idle.

Poor driveability.

If any of the above conditions are noted, first perform
a routine diagnosis that includes basic engine checks
(ignition system malfunction, incorrectengine adjustment,
etc.). Then, inspect the disel contorl system components
with the HI-SCAN (Pro).

NOTE

• Before removing or installing any part, read the

diagnostic trouble codesand then disconnect the
battery negative (-) terminal.

• Before disconnecting the cable from battery ter-

minal, turn the ignition switch to OFF. Removal
or connection of the battery cable during engine
operationor while the ignition switch is ON could
cause damage to the ECM.

• Wchecking the generator for the charging state,

do not disconnect the battery ’+’ terminal to pre-
vent the ECM from damage due to the voltage.

• Wcharging the battery with the external charger,

disconnect the vehicleside battery terminals to
prevent damage to the ECM.

SELF-DIAGNOSIS

The ECM monitors the input/output signals (some signals
at all times and theothers under specified conditions).
When the ECM detects an irregularity, it records the
diagnostic trouble code, and outputs the signal to the
Data Link connector.

The diagnosis results can be

read with the MIL or HI-SCAN(Pro). Diagnostic Trouble
Codes(DTC) will remain in the ECM as long as battery
power is maintained. The diagnostic trouble codes will,
however, be erased when the battery terminal or the
engine control module(ECM) connector isdisconnected,
or by the HI-SCAN (Pro).

NOTE

If a sensor connector is disconnected with the ignition
switch turned on, the diagnostic trouble code (DTC)
is recorded. In this case, disconnect the battery neg-
ative terminal (-) for 15 seconds or more, and the di-
agnosis memory will be erased.

CHECKING PROCEDURE (SELF-DIAGNOSIS)

NOTE

• When attery voltage is excessively low, diagnos-

tic trouble codes can not be read. Be sure to
check the battery for voltage and the charging
system before starting the test

• Diagnosis memory is erased if the battery or

the ECM connector is disconnected.

Do not

disconnect the battery before the diagnostic
trouble codes are completely read and recorded.

INSPECTION PROCEDURE (USING GENERIC SCAN
TOOL)

Turn OFF the ignition switch.

Connect the scan tool to the data link connector on
the lower crash pad.

AWJF300D

Turn ON the ignition switch.

Use the scan tool to check the diagnostic trouble
code.

Repair the faulty part from the diagnosis chart.

Erase the diagnostic trouble code.

Disconnect the GST.

NOTE

When deleting diagnostic trouble code, use scan tool
as possible.

FL -24

FUEL SYSTEM

COMPONENT LOCATION

E311F376

3
4

22 23

12 13

1. Mass Air Sensor (MAFS)
2. Intake Air Temperature Sensor (IATS)
#1 built in MAFS
3. Boost Pressure Sensor (BPS)
4. Intake Air Temperature Sensor (IATS)
#2 built in BPS
5. Engine Coolant Temperature Sensor (ECTS)
6. Camshaft Position Sensor (CMPS)
7. Crankshaft Position Sensor (CKPS)
8. Accelerator Position Sensor (APS)

9. Fuel Temperature Sensor (FTS)
10. A/C Pressure Transducer (APT)
11. Rail Pressure Sensor (RPS)
12. Vehicle Speed Sensor (VSS)
13. Oil Pressure Switch (OPS)
14. Water Sensor (included in Fuel Filter)
15. Injector
16. Throttle Control Actuator
17. VGT Control Solenoid Valve
18. Electric EGR Control Valve

19. Variable Swirl Control Actuator
20. Fuel Pressure Regulator Valve
21. Rail Pressure Regulator Valve
22. Main Relay
23. Fuel Pump Relay
24. Glow Relay
25. Auxiliary Heater Relay
26. Multi-Purpose Check Connector
27. Data Link Connector (DLC)
28. ECM (Engine Control Module)

SCMFL6101L

DIESEL CONTROL SYSTEM

FL -25

1. Mass Air Flow Sensor (MAFS)
2. Intake Air Temperature Sensor (IATS) #1 built in MAFS

3. Boost Pressure Sensor (BPS)
4. Intake Air Temperature Sensor (IATS) #2 built in BPS
17. VGT Control Solenoid Valve

MAFS & IATS #1

SCMFL6003D

VGT Control Solenoid Valve

BPS & IATS #2

SCMFL6102L

5. Engine Coolant Temperature Sensor (ECTS)

6. Camshaft Position Sensor (CMPS)

ECTS

EFQG008A

CMPS

EFQG010A

7. Crankshaft Position Sensor (CKPS)
13. Oil Pressure Switch (OPS)

8. Accelerator Pedal Position Sensor (APS)

CKPS

OPS

EFQG011A

SCMFL6005D

Content .. 351 352 353 354 ..