Hyundai: Engine D4FA. Manual - part 167

FUEL DELIVERY SYSTEM-DIESEL

FLA -539

INPUT THE NUM.
OF ALL CYL.
AT ONE TIME 

1. HYUND

1. HYUNDAI 

AI VEHICLE DIA

VEHICLE DIAGNOSIS 

GNOSIS 

VEHICLE N

VEHICLE NAME

AME

EGNG102A

CAUTION

1.

When

displaying

"WRITING

FAIL"

ON

Hi-scan(Pro), input injector data (7digits)
of each cylinder into a new ECM again as
priow procedure.

LGJF502A

2.

If the glow lamp is flashed and DTC P1586
is detected ignition switch ON, take proper
steps refering to "P1586 DTC Troubleshoot-
ing procedure".

INSTALLATION

EE11EE7A

CAUTION

• Common

Rail Fuel Injection

System

is

subject to extremely high pressure (Approxi-
mately 1,600 bar)

• Never perform any work on injection system

with engine running or within 30 seconds af-
ter the engine stops.

• Always pay attention to safety precaution.
• Ensure the absolute cleanliness.
• It is not recommended to remove the injectors

without any notice.

1.

Insert the new seal ring.

LXGF573A

FLA -540

FUEL SYSTEM

CAUTION

• Whenever using the used injector again, the

clamp fixing bolt and seal-ring are replaced
with a new one.

• Before re-installing injector, clean the cylin-

der head bore and sealing surface.

2.

Insert the injector assembly into the cylinder block.

CAUTION

Do not touch the nozzle tip.

3.

Spread oil on the injector tip and the cylinder head.

4.

Install the injector by installing the clamp with clamp
bolt

Tightening Torques (Injector Clamp Bolt installation):
27.5 ~ 29.4 N·m (20.3 ~ 21.7 lbf·ft)

5.

After screwing thr high pressure pipe installation nuts
by hand, tighten them at accurate torque using special
service tools (09354-27110, 09314-27130).

SST

LGJF502R

Tightening Torque (High Pressure Pipe installation
nut): 24.5 ~ 28.4 N·m (18.1 ~ 21.0 lbf·ft)

6.

Connect the return hose (A) by inserting the fixing clip
(B).

A

B

LXGF571A

CAUTION

Do not reuse a fixing clip.

7.

Connect the injector electric connector (A).

A

LXGF570C

8.

Connect the battery (-) cable.

9.

Start the engine and check for leakage on high pres-
sure fuel line.

CAUTION

Check the fuel-system visually for any leakage.
If a leakage is detected even have been used
the correct torque, the component(s) must be
exchanged.

INSPECTION

E0952E37

USING HI-SCAN(PRO)

• COMPRESSION TEST
• IDLE SPEED COMPARISON
• INJECT QUANTITY COMPARISON

FUEL DELIVERY SYSTEM-DIESEL

FLA -541

TEST PROCEDURE

1.

Connect Hi-Scan(Pro) and select "Vehicle" and "En-
gine Test Function".

2.

Information for ECM version is displayed as below.

1.7.  COMPRESSION TEST

SYSTEM IMFORMATION

P/N : 39100-27920

S/W : 86S2MDV8

This function is available

If you ready, press [ENTER].

1.7.  COMPRESSION TEST

SYSTEM IMFORMATION

P/N : 39100-27920

S/W : 86S2MDV8

This function is not available.

Not all ECM version support

this function

If you ready, press [ENTER].

<Available system>

<Not available system>

LXGF577A

3.

After pressing "[ENTER]", select "COMPRESSION
TEST" mode and press "[ENTER]".

1.7.  COMPRESSION TEST

01. COMPRESSION TEST

02. IDLE SPEED COMPARISON

03. INJECT. QUANTITY COMPARISON

LFIF660D

4.

Set the test condition described as below screen and
then, crank engine. When engine stop message be-
ing appeared, stop cranking.

7.1.  COMPRESSION TEST

This test is used for detecting
cylinder specific engine speed
without injection.
   * Test condition
         - Shift lever        : P or N
         - Engine            : Stop (IGN. ON)
         - Electrical Load : OFF
If you ready, now cranking, and stop
cranking when stop message appear on
the screen.   Press [ENTER].         

LFIF660E

5.

Press "ANAL" and the test result is appeared.

7.1 COMPRESSION TEST

Cylinder engine speed(RPM) 

#1

When the stop message appear, stop cranking.

ANAL

356

356

356

356

357

356

355

355

356

356

356

356

355

356

355

357

356

356

355

355

355

355

356

355

356

356

355

355

#2

#3

#4

LFIF660F

NOTE

During cranking engine does not start.

FLA -542

FUEL SYSTEM

7.1 COMPRESSION TEST

Cylinder engine speed(RPM) 

#1

356

356

356

356

357

356

355

355

356

356

356

356

355

356

355

357

356

356

355

355

355

355

356

355

356

356

355

355

#2

AVG

HELP

#3

#4

Data scanning button

LFIF660G

6.

Press "AVG" and the data average of each cylinder is
appeared.
Press "HELP" and description of the data is appeared.

Speed(RPM) 200    250      300       350           AvG

Cylinder engine speed(RPM)       

#1    CYL.

#2    CYL.

#3    CYL.

#4    CYL.

355

355

355

355

PREV

HELP

*The higher cylinder engine speed:
  - >The low compression pressure.
*It can help to identify the 
 mechanical defects.

7.1  COMPRESSION TEST

PREV

LFIF660H

7.

After pressing "ESC", select "IDLE SPEED COMPAR-
ISON" and press "[ENTER]".

8.

Set the test condition described as below screen and
press "[ENTER]".

7.2. IDLE SPEED COMPARISON

This test is used for detecting
cylinder specific engine speed with
injector energizing.
(Cylinder balancing function is
deactivated.)

* Test condition 
      - Compression test : Normal
      - Shift lever        : P or N
      - Engine            : Idle
      - Electrical Load : OFF

If you ready, Press [ENTER].

LFIF660J

9.

The rpm data of each cylinder is appeared.

7.2  IDLE SPEED COMPARISON

Analyze the test result.

Cylinder engine speed(RPM) 

#1

790

796

794

794

794

794

792

800

798

800

802

802

802

802

752

756

752

754

754

756

752

770

772

770

772

770

774

772

#2

#3

#4

ANAL

7.2  IDLE SPEED COMPARISON

Cylinder engine speed(RPM)

#1

784

786

786

788

784

788

786

774

778

776

780

776

780

776

788

788

788

790

786

792

788

764

766

766

768

764

770

766

#2

AVG

HELP

#3

#4

LFIF660K