Nissan Qashqai J11. Manual - part 398

ECK-152

< BASIC INSPECTION >

[K9K]

ACCELERATOR PEDAL

ACCELERATOR PEDAL

Work Procedure

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1.

PERFORM ACCELERATOR PEDAL FORCE-I

1.

Turn ignition switch OFF.

2.

Depress the accelerator pedal and check if there is a specific point (A) in the pedal stroke where the pedal
force increase as shown in the figure.

Is the inspection result normal?

YES

>> GO TO 2.

NO

>> Replace accelerator pedal assembly. Refer to 

ACC-3, "Removal and Installation"

.

2.

PERFORM ACCELERATOR PEDAL FORCE-II

1.

Turn ignition switch ON.

2.

Check the voltage between ECM harness connector and ground under the following conditions.

Is the inspection result normal?

YES

>> INSPECTION END

NO

>> Replace accelerator pedal assembly. Refer to 

ACC-3, "Removal and Installation"

.

JMBIA1519GB

ECM

Condition

Voltage

Connector

+

–

Terminal

Terminal

E59

31

(APP sensor 1)

30

Depressing range of the accelerator pedal: 
Within (C) as indicated in the figure

More than 4.35 V

22

(APP sensor 2)

21

More than 2.17 V

FUEL PRESSURE CHECK

ECK-153

< BASIC INSPECTION >

[K9K]

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FUEL PRESSURE CHECK

Work Procedure

INFOID:0000000010289706

1.

START

1.

Start engine and warm it up until engine coolant temperature is suitable temperature.

2.

On CONSULT screen, select “ENGINE” >> “WORK SUPPORT” >> “High pressure fuel circuit fault find-
ing”.

3.

Touch “START” and wait a few seconds.

4.

Make sure that CMPLT is displayed on CONSULT screen.

>> END

ECK-154

< BASIC INSPECTION >

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INJECTOR CHECK

INJECTOR CHECK

Work Procedure (Fuel Injectors Leak Check)

INFOID:0000000010289686

NOTE:
• CONDITIONS PRIOR TO TEST
- The entire low pressure system must be in good condition.
- Check the sealing of the high pressure pipes and unions.
- Test 3 High pressure fuel pump (pressure control valve) check is OK
- Test 4 High pressure fuel pump (volumetric control valve) check is OK
- Test 5 Rail high pressure regulation circuit check is OK.
• CAUSE
- Not enough or no rail pressure during starting.
- The engine does not start.

1.

CHECK FUEL INJECTOR-I

Refer to 

ECK-212, "Component Inspection (Fuel Injector)"

.

Is the inspection result normal?

YES

>> GO TO 2.

NO

>> Replace malfunctioning fuel injector. Refer to 

EM-293, "Removal and Installation"

.

2.

CHECK INTERNAL FUEL TRANSFER PUMP

1.

Turn ignition switch OFF.

2.

Disconnect the return system connections at the fuel injectors and close off the return pipes so they are
leak-tight.

3.

To authorise a 15 second cranking engine and carry out this test it is essential to carry out the following
procedure:

-

Disconnect high pressure fuel pump (volumetric control valve) harness connector

-

Turn ignition switch ON.

-

Perform “SAVE COMPUTER DATA” in WORK SUPPORT mode with CONSULT.

-

Cranking engine for at least 15 seconds (starting speed 250 rpm)

-

Perform “WRITING SAVED DATA” in WORK SUPPORT mode with CONSULT.

Is the return volume at the fuel injectors more than 20 ml per fuel injector for the starting phase?
NOTE:
•

Do not repeat this procedure more than 3 times and wait 30 seconds between each 15 second cranking
engine.

•

Then wait 30 minutes before cranking the engine for 315 second cycles.

•

Follow this instruction so that the starter does not get damaged.

Does the flow measure more than 20 ml?

Yes

>> Replace malfunctioning fuel injector. Refer to 

EM-293, "Removal and Installation"

.

No

>> GO TO 3.

3.

CHECK FUEL INJECTOR-II

1.

Turn ignition switch OFF.

2.

Reconnect return pipes.

3.

Start Engine.

4.

Select “DATA MONITOR” mode with CONSULT.

5.

Check “RAIL PRESSURE” and “RAIL PRES SET” indication.

6.

Does “RAIL PRESSURE” follow “RAIL PRES SET” during the 3 second cranking engine?

Is the inspection result normal?

YES

>> GO TO 5.

NO

>> GO TO 4.

4.

CHECK GLOW PLUG

1.

Turn ignition switch OFF.

2.

Remove the glow plugs and check for moisture.

3.

If the glow plugs are wet with fuel, it is possible that the fuel injector is leaking.

Are the glow plugs wet with fuel?

Yes

>> Replace malfunction fuel injector. Refer to 

EM-293, "Removal and Installation"

.

INJECTOR CHECK

ECK-155

< BASIC INSPECTION >

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No

>> Replace high pressure fuel pump. Refer to 

EM-300, "Removal and Installation"

.

5.

INSPECTION END

Fuel injector system OK.

>> INSPECTION END

Work Procedure (Fuel Injection Quantity Check)

INFOID:0000000010289687

NOTE:
• CONDITIONS PRIOR TO TEST
- The entire low pressure system must be in good condition.
- Check the sealing of the high pressure pipes and unions.
- Test 3 High pressure fuel pump (pressure control valve) check is OK
- Test 4 High pressure fuel pump (volumetric control valve) check is OK
- Test 5 Rail high pressure regulation circuit check is OK.
- All the electrical loads are switched off.
- Air conditioning is switched off.
• CAUSE
- The engine runs poorly at idle speed, possibly emits white smoke.

1.

CHECK FUEL INJECTOR 1

Refer to 

ECK-212, "Component Inspection (Fuel Injector)"

.

Is the inspection result normal?

YES

>> GO TO 2.

NO

>> Replace malfunctioning fuel injector. Refer to 

EM-293, "Removal and Installation"

.

2.

CHECK FUEL INJECTOR 2

1.

Start engine let it idle speed.

2.

Check the signal of the fuel injector. Refer to 

ECK-76, "Reference Value"

.

Is the inspection result normal?

YES

>> GO TO 3.

NO

>> GO TO 4.

3.

CHECK INTERNAL FUEL TRANSFER PUMP

1.

Turn ignition switch OFF.

2.

Disconnect the return system connections at the fuel injectors and close off the return pipes so they are
leak-tight. While the engine is idling, check the return flow rate at the fuel injector. After 5 minutes the
return volume must be between 16 - 24 ml per fuel injector.

Is there more than 24 ml or less than 16 ml of return for each fuel injector?

Yes

>> Replace malfunctioning fuel injector. Refer to 

EM-293, "Removal and Installation"

.

No

>> INSPECTION END

4.

CHECK COMPRESSION PRESSURE

Check compression pressure.

>> INSPECTION END