Nissan Qashqai (2007-2010). Manual - part 435

 

  Index      Nissan     Nissan Qashqai - service and repair manual 2007 - 2010 year

 

Search            copyright infringement  

 

 

 

 

 

 

 

  

 

Content   ..  433  434  435  436   ..

 

 

Nissan Qashqai (2007-2010). Manual - part 435

 

 

INSPECTION AND ADJUSTMENT

EC-1259

< BASIC INSPECTION >

[K9K]

C

D

E

F

G

H

I

J

K

L

M

A

EC

N

P

O

2.

CHECK FUEL CIRCUIT

Does the fuel circulate correctly when pumped manually?
Yes or No

Yes

>> GO TO 5.

No

>> GO TO 3.

3.

CHECK FOR LEAK

Look for leaks on the unions.

Are there leaks in the hoses and unions?

Yes

>> Carry out the required repairs.

No

>> GO TO 4.

4.

CHECK FUEL FILTER

Check the correctness of the fuel filter.

Is the fuel filter correct?

Yes

>> GO TO 5.

No

>> Replace the fuel filter with a genuine part.

5.

INSPECTION END

Low pressure circuit OK.

>> INSPECTION END

BASIC INSPECTION : Special Repair Requirement (TEST 2: Internal Fuel Transfer 
Pump Check)

INFOID:0000000001083086

NOTE:
• CONDITIONS PRIOR TO TEST
- Test 1 Low pressure fuel supply system check has been carried out previously and results are satisfactory.
• CAUSE
- Fuel can be seen in the transparent supply pipe leading to the pump.
- However, fuel does not move during starting.

1.

CHECK INTERNAL FUEL TRANSFER PUMP

1.

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

2.

Remove fuel return pipe from the pump and block it so that it is sealed. Connect a pipe to the pump to
measure the flow of diesel.

3.

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

-

Turn ignition switch ON.

-

Perform “SAVE DATA FOR CPU REPLC” in WORK SUPPORT mode with CONSULT-III.

-

Perform “PRGRM_REINITIALIZE” in WORK SUPPORT mode with CONSULT-III.

-

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

-

Check the flow rate of the fuel being collected in a graduated measuring cylinder (500 ml minimum).The
minimum flow rate must be 25 ml every 15 sec.

-

Perform “WRT DATA AFTR REPLC CPU” in WORK SUPPORT mode with CONSULT-III.

Does the flow measure less than 25ml?

Yes

>> Replace high pressure supply pump.

No

>> GO TO 2.

2.

INSPECTION END

Low pressure system OK.

>> INSPECTION END

BASIC INSPECTION : Special Repair Requirement [TEST 3: High Pressure Supply 
Pump (Pressure Control Valve) Check]

INFOID:0000000001083087

EC-1260

< BASIC INSPECTION >

[K9K]

INSPECTION AND ADJUSTMENT

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.
• CAUSE
- Rail pressure approximately 5000 kPa(50 bar, 51 kg/cm

2

, 725 psi) during starting.

1.

CHECK HIGH PRESSURE SUPPLY PUMP (PRESSURE CONTROL VALVE) POWER SUPPLY

1.

Turn ignition switch OFF.

2.

Disconnect high pressure supply pump (pressure control valve) harness connector.

3.

Turn ignition switch ON.

4.

Check the voltage between high pressure supply pump (pressure control valve) harness connector and
ground.

Is the inspection result normal?

YES

>> GO TO 3.

NO

>> GO TO 2.

2.

DETECT MALFUNCTIONING PART

Check the following.
• IPDM E/R 
• Harness connector E7, F121
• Harness for open or short between IPDM E/R and high pressure supply pump (pressure control valve)
• Harness for open or short between ECM and high pressure supply pump (pressure control valve)

>> Repair open circuit or short to ground or short to power in harness or connectors.

3.

CHECK HIGH PRESSURE SUPPLY PUMP (PRESSURE CONTROL VALVE) OUTPUT SIGNAL CIRCUIT

FOR OPEN AND SHORT

1.

Turn ignition switch OFF.

2.

Disconnect ECM harness connector.

3.

Check the continuity between high pressure supply pump (pressure control valve) harness connector and
ECM harness connector.

4.

Also check harness for short to ground and short to power. 

Is the inspection result normal?

YES

>> GO TO 4.

NO

>> Repair open circuit or short to ground or short to power in harness or connectors.

4.

HIGH PRESSURE SUPPLY PUMP (PRESSURE CONTROL VALVE) CHECK

Refer to 

EC-1334, "Component Inspection"

.

Is the inspection result normal?

Yes

>> INSPECTION END

No

>> Replace high pressure supply pump.

BASIC INSPECTION : Special Repair Requirement [TEST 4: High Pressure Supply 
Pump (Volumetric Control Valve) Check]

INFOID:0000000001083088

High pressure supply pump 

(Pressure control valve)

Ground

Voltage

Connector

Terminal

F107

3

Ground

Battery voltage

High pressure supply pump 

(Pressure control valve)

ECM

Continuity

Connector

Terminal

Connector

Terminal

F107

4

F68

49

Existed

INSPECTION AND ADJUSTMENT

EC-1261

< BASIC INSPECTION >

[K9K]

C

D

E

F

G

H

I

J

K

L

M

A

EC

N

P

O

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.
• CAUSE
- Not enough or no rail pressure during starting.
- Rail reference pressure during starting, minimum 15 000 kPa (150 bar, 153 kg/cm

2

, 2175 psi).

1.

CHECK HIGH PRESSURE SUPPLY PUMP (VOLUMETRIC CONTROL VALVE)-II

Refer to 

EC-1321, "Component Inspection"

.

Is the inspection result normal?

YES

>> GO TO 2

NO

>> Replace high pressure supply pump.

2.

CHECK HIGH PRESSURE SUPPLY PUMP (VOLUMETRIC CONTROL VALVE)-I

• Reconnect all harness connectors disconnected.
• Turn ignition switch ON.
• Select “DATA MONITOR” mode with CONSULT-III.
• Check that the “FUEL_FLOW_S/V_CU” indication when the cranking engine.

Is the excitation current between 0.6 - 1.0A?

YES

>> GO TO 6.

NO

>> GO TO 3.

3.

CHECK HIGH PRESSURE SUPPLY PUMP (VOLUMETRIC CONTROL VALVE) POWER SUPPLY

1.

Turn ignition switch OFF.

2.

Disconnect high pressure supply pump (volumetric control valve) harness connector.

3.

Turn ignition switch ON.

4.

Check the voltage between high pressure supply pump (volumetric control valve) harness connector and
ground.

Is the inspection result normal?

YES

>> GO TO 5.

NO

>> GO TO 4.

4.

DETECT MALFUNCTIONING PART

Check the following.
• IPDM E/R 
• Harness connector E7, F121
• Harness for open or short between ECM and high pressure supply pump (volumetric control valve)
• Harness for open or short between IPDM E/R and high pressure supply pump (volumetric control valve)

>> Repair open circuit or short to ground or short to power in harness or connectors.

5.

CHECK HIGH PRESSURE SUPPLY PUMP (VOLUMETRIC CONTROL VALVE) OUTPUT SIGNAL CIR-

CUIT FOR OPEN AND SHORT

1.

Turn ignition switch OFF.

2.

Disconnect ECM harness connector.

3.

Check the continuity between high pressure supply pump (volumetric control valve) harness connector
and ECM harness connector.

High pressure supply pump 

(volumetric control valve)

Ground

Voltage

Connector

Terminal

F106

1

Ground

Battery voltage

EC-1262

< BASIC INSPECTION >

[K9K]

INSPECTION AND ADJUSTMENT

4.

Also check harness for short to ground and short to power. 

Is the inspection result normal?

YES

>> INSPECTION END

NO

>> Repair open circuit or short to ground or short to power in harness or connectors.

6.

CHECK ENGINE CONDITION

Start engine.
Is the engine start?

YES

>> GO TO 7.

NO

>> GO TO 9.

7.

CHECK ENGINE CONDITION

• Check that the oil level is correct and that the engine coolant temperature is normal operation temperature

60

°

C (140

°

F)

• Engine running at idle speed.
- Select “HIGH PRES CIRCUIT LEAK TEST” in “ACTIVE TEST” mode with CONSULT-III.
- Engine will perform 4 acceleration cycles.
- Select “DATA MONITOR” mode with CONSULT-III.
- Check that the “RAIL PRES SET” and “RAIL PRESSURE” indication.
- Does “RAIL PRESSURER” follow “RAIL PRES SET” at 

±

 5000 kPa(50 bar, 51 kg/cm

2

, 725 psi) during the

phase of the 4 acceleration cycles?

NOTE:
If the rail pressure does not reach the setpoint there is an fuel injector leak that is too great or the pressure sig-
nal is incorrect.

Is the inspection result normal?

YES

>> GO TO 11.

NO

>> GO TO 8.

8.

CHECK RAIL HIGH PRESSURE CONTROL CIRCUIT

Carry out TEST 5.

>> GO TO 11.

9.

CHECK ENGINE CONDITION

• Check that the oil level is correct.
• Select “DATA MONITOR” mode with CONSULT-III.
• Check that the “RAIL PRES SET” and “RAIL PRESSURE” indication.
• Does “RAIL PRESSURER” follow “RAIL PRES_SET” when the cranking engine.
NOTE:
If the rail pressure does not reach the setpoint there is an fuel injector leak that is too great or the pressure sig-
nal is incorrect.

Is the inspection result normal?

YES

>> GO TO 11.

NO

>> GO TO 10.

10.

CHECK MAJOR LEAK IN FUEL INJECTOR/FUEL INJECTORS OPEN

Carry out TEST 6.

>> GO TO 11.

11.

INSPECTION END

High pressure supply pump (volumetric control valve) OK.

High pressure supply pump 

(volumetric control valve)

ECM

Continuity

Connector

Terminal

Connector

Terminal

F106

2

F68

50

Existed

 

 

 

 

 

 

 

Content   ..  433  434  435  436   ..