Nissan Qashqai (2007-2010). Manual - part 481

 

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Nissan Qashqai (2007-2010). Manual - part 481

 

 

ENGINE IDLE SPEED TOO HIGH

EC-1443

< SYMPTOM DIAGNOSIS >

[K9K]

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ENGINE IDLE SPEED TOO HIGH

Description

INFOID:0000000000912063

CHART 5: ENGINE IDLE SPEED TOO HIGH

Diagnosis Procedure

INFOID:0000000000912064

1.

CHECK ECM POWER SUPPLY AND GROUND CIRCUIT

Check ECM power supply and ground circuit. Refer to 

EC-1317, "Diagnosis Procedure"

.

Is the inspection result normal?

YES

>> GO TO 2.

NO

>> Repair or replace harness or connector.

2.

CHECK WIRING HARNESS

Visually check the condition of the engine wiring harness.

Is the inspection result normal?

YES

>> GO TO 3.

NO

>> Repair or replace harness or connector.

3.

CHECK ACCELERATOR PEDAL POSITION SENSOR

Check the accelerator pedal position sensor. Refer to 

EC-1408, "Component Inspection"

.

Is the inspection result normal?

YES

>> INSPECTION END

NO

>> Repair or replace.

EC-1444

< SYMPTOM DIAGNOSIS >

[K9K]

ENGINE IDLE SPEED TOO LOW OR UNSTABLE

ENGINE IDLE SPEED TOO LOW OR UNSTABLE

Description

INFOID:0000000000912060

CHART 6: ENGINE IDLE SPEED TOO LOW OR UNSTABLE

Diagnosis Procedure

INFOID:0000000000912061

1.

CHECK FUEL

Check that the fuel reservoir is correctly filled and with the right fuel.

>> GO TO 2.

2.

CHECK ECM POWER SUPPLY AND GROUND CIRCUIT

Check ECM power supply and ground circuit. Refer to 

EC-1317, "Diagnosis Procedure"

.

Is the inspection result normal?

YES

>> GO TO 3.

NO

>> Repair or replace harness or connector.

3.

CHECK WIRING HARNESS

Visually check the condition of the engine wiring harness.

Is the inspection result normal?

YES

>> GO TO 4.

NO

>> Repair or replace harness or connector.

4.

CHECK AIR INTAKE SYSTEM 

Check air intake system. Refer to 

EM-265, "Removal and Installation"

.

Is the inspection result normal?

YES

>> GO TO 5.

NO

>> Repair or replace air intake system. Refer to 

EM-265, "Removal and Installation"

.

5.

CHECK ELECTRIC THROTTLE CONTROL ACTUATOR

Check electric throttle control actuator. Refer to 

EC-1345, "Diagnosis Procedure"

.

Is the inspection result normal?

YES

>> GO TO 6.

NO

>> Repair or replace.

6.

CHECK MASS AIR FLOW SENSOR

Check mass air flow sensor. Refer to 

EC-1337, "Component Inspection"

.

Is the inspection result normal?

YES

>> GO TO 7.

NO

>> Repair or replace.

7.

CHECK REFRIGERANT PRESSURE SENSOR

Check refrigerant pressure sensor. Refer to 

EC-1380, "Diagnosis Procedure"

.

Is the inspection result normal?

YES

>> GO TO 8.

NO

>> Repair or replace.

8.

CHECK EGR SYSTEM

Check EGR system. Refer to 

EC-1415, "Diagnosis Procedure"

.

Is the inspection result normal?

YES

>> GO TO 9.

NO

>> Repair or replace.

9.

CHECK CATALYTIC CONVERTER

Is the catalytic converter clogged or deteriorated?

ENGINE IDLE SPEED TOO LOW OR UNSTABLE

EC-1445

< SYMPTOM DIAGNOSIS >

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Is the inspection result normal?

YES

>> GO TO 10.

NO

>> Repair or replace.

10.

CHECK LOW PRESSURE CIRCUIT

Perform the TEST 1: LOW PRESSURE CIRCUIT CHECK. Refer to 

EC-1262, "BASIC INSPECTION : Special

Repair Requirement (TEST 1: Low Pressure Fuel Supply System Check)"

.

>> GO TO 11.

11.

CHECK INTERNAL FUEL TRANSFER PUMP

Perform the TEST 2: INTERNAL FUEL TRANSFER PUMP CHECK. Refer to 

EC-1263, "BASIC INSPECTION

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

.

>> GO TO 12.

12.

CHECK HIGH PRESSURE SUPPLY PUMP (PRESSURE CONTROL VALVE)

Perform the TEST 3: HIGH PRESSURE SUPPLY PUMP (PRESSURE CONTROL VALVE). Refer to 

EC-1263,

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

.

>> GO TO 13.

13.

CHECK HIGH PRESSURE SUPPLY PUMP (VOLUMETRIC CONTROL VALVE)

Perform the TEST 4: HIGH PRESSURE SUPPLY PUMP (VOLUMETRIC CONTROL VALVE). Refer to 

EC-

1264, "BASIC INSPECTION : Special Repair Requirement [TEST 4: High Pressure Supply Pump (Volumetric
Control Valve) Check]"

.

>> GO TO 14.

14.

CHECK RAIL HIGH PRESSURE CONTROL CIRCUIT

Perform the TEST 5: RAIL HIGH PRESSURE CONTROL CIRCUIT CHECK. Refer to 

EC-1267, "BASIC

INSPECTION : Special Repair Requirement (TEST 5: Rail High Pressure Regulation Check)"

.

>> GO TO 15.

15.

CHECK MAJOR LEAK IN FUEL INJECTOR/FUEL INJECTORS OPEN

Perform the TEST 6: MAJOR LEAK IN FUEL INJECTOR/FUEL INJECTORS OPEN. Refer to 

EC-1271,

"BASIC INSPECTION : Special Repair Requirement (TEST 6: Major Leak in Fuel Injectors/Fuel Injectors
Open)"

.

>> GO TO 16.

16.

CHECK INCORRECT FUEL INJECTION QUANTITY

Perform the TEST 7: INCORRECT FUEL INJECTION QUANTITY. Refer to 

EC-1272, "BASIC INSPECTION :

Special Repair Requirement (TEST 7: Incorrect Fuel Injection Quantity)"

.

>> INSPECTION END

EC-1446

< SYMPTOM DIAGNOSIS >

[K9K]

ENGINE STALLING

ENGINE STALLING

Description

INFOID:0000000000912066

CHART 7: ENGINE STALLING

Diagnosis Procedure

INFOID:0000000000912067

1.

CHECK FUEL

Check that the fuel reservoir is correctly filled and with the right fuel.

>> GO TO 2.

2.

CHECK ECM POWER SUPPLY AND GROUND CIRCUIT

Check ECM power supply and ground circuit. Refer to 

EC-1317, "Diagnosis Procedure"

.

Is the inspection result normal?

YES

>> GO TO 3.

NO

>> Repair or replace harness or connector.

3.

CHECK WIRING HARNESS

Visually check the condition of the engine wiring harness.

Is the inspection result normal?

YES

>> GO TO 4.

NO

>> Repair or replace harness or connector.

4.

CHECK AIR INTAKE SYSTEM 

Check air intake system. Refer to 

EM-265, "Removal and Installation"

.

Is the inspection result normal?

YES

>> GO TO 5.

NO

>> Repair or replace air intake system.

5.

CHECK ELECTRIC THROTTLE CONTROL ACTUATOR

Check electric throttle control actuator. Refer to 

EC-1345, "Diagnosis Procedure"

.

Is the inspection result normal?

YES

>> GO TO 6.

NO

>> Repair or replace.

6.

CHECK MASS AIR FLOW SENSOR

Check mass air flow sensor. Refer to 

EC-1337, "Component Inspection"

.

Is the inspection result normal?

YES

>> GO TO 7.

NO

>> Repair or replace.

7.

CHECK EGR SYSTEM

Check EGR system. Refer to 

EC-1415, "Diagnosis Procedure"

.

Is the inspection result normal?

YES

>> GO TO 8.

NO

>> Repair or replace.

8.

CHECK CATALYTIC CONVERTER

Is the catalytic converter clogged or deteriorated?

Is the inspection result normal?

YES

>> GO TO 9.

NO

>> Repair or replace.

9.

CHECK CAN COMMUNICATION

 

 

 

 

 

 

 

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