Nissan Qashqai (2007-2010). Manual — part 483
ENGINE BUCKING
EC-1451
< SYMPTOM DIAGNOSIS >
[K9K]
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ENGINE BUCKING
Description
INFOID:0000000000912072
CHART 9: ENGINE BUCKING
Diagnosis Procedure
INFOID:0000000000912073
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
>> GO TO 4.
NO
>> Repair or replace.
4.
CHECK ASCD CLUTCH SWITCH
Check ASCD clutch switch. Refer to
EC-1401, "Component Inspection"
Is the inspection result normal?
YES
>> GO TO 5.
NO
>> Repair or replace.
5.
CHECK VEHICLE SPEED SIGNAL
Check the following component.
• “ABS actuator and electric unit (control unit)” [Refer to
BRC-17, "CONSULT-III Function (ABS)"
BRC-96, "CONSULT-III Function (ABS)"
(with ESP).]
• Combination meter (Refer to
MWI-23, "CONSULT-III Function (METER/M&A)"
.)
Is the inspection result normal?
YES
>> GO TO 6.
NO
>> Repair or replace.
6.
CHECK CAN COMMUNICATION
Perform trouble diagnosis on the CAN communication line using CONSULT-III. Refer to
.
Is the inspection result normal?
YES
>> GO TO 7.
NO
>> Repair or replace harness or connector.
7.
CHECK AIR INTAKE SYSTEM
Check air intake system. Refer to
EM-265, "Removal and Installation"
.
Is the inspection result normal?
YES
>> GO TO 8.
NO
>> Repair or replace air intake system.
8.
CHECK ELECTRIC THROTTLE CONTROL ACTUATOR
Check electric throttle control actuator. Refer to
EC-1345, "Diagnosis Procedure"
.
Is the inspection result normal?
EC-1452
< SYMPTOM DIAGNOSIS >
[K9K]
ENGINE BUCKING
YES
>> GO TO 9.
NO
>> Repair or replace.
9.
CHECK MASS AIR FLOW SENSOR
Check mass air flow sensor. Refer to
EC-1337, "Component Inspection"
.
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
: 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
.
>> 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
.
>> GO TO 14.
14.
CHECK RAIL HIGH PRESSURE CONTROL CIRCUIT
Perform the TEST 5: RAIL HIGH PRESSURE CONTROL CIRCUIT CHECK. Refer to
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
.
>> GO TO 16.
16.
CHECK INCORRECT FUEL INJECTION QUANTITY
Perform the TEST 7: INCORRECT FUEL INJECTION QUANTITY. Refer to
Special Repair Requirement (TEST 7: Incorrect Fuel Injection Quantity)"
>> INSPECTION END
ERRATIC ACCELERATION
EC-1453
< SYMPTOM DIAGNOSIS >
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ERRATIC ACCELERATION
Description
INFOID:0000000000912075
CHART 10: Erratic acceleration
Diagnosis Procedure
INFOID:0000000000912076
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
>> GO TO 4.
NO
>> Repair or replace.
4.
CHECK ASCD CLUTCH SWITCH
Check ASCD clutch switch. Refer to
EC-1401, "Component Inspection"
Is the inspection result normal?
YES
>> GO TO 5.
NO
>> Repair or replace.
5.
CHECK VEHICLE SPEED SIGNAL
Check the following component.
• “ABS actuator and electric unit (control unit)” [Refer to
BRC-17, "CONSULT-III Function (ABS)"
BRC-96, "CONSULT-III Function (ABS)"
(with ESP).]
• Combination meter (Refer to
MWI-23, "CONSULT-III Function (METER/M&A)"
.)
Is the inspection result normal?
YES
>> GO TO 6.
NO
>> Repair or replace.
6.
CHECK CAN COMMUNICATION
Perform trouble diagnosis on the CAN communication line using CONSULT-III. Refer to
.
Is the inspection result normal?
YES
>> GO TO 7.
NO
>> Repair or replace harness or connector.
7.
CHECK HIGH PRESSURE SUPPLY PUMP (PRESSURE CONTROL VALVE)
Perform the TEST 3: HIGH PRESSURE SUPPLY PUMP (PRESSURE CONTROL VALVE). Refer to
.
>> GO TO 8.
8.
CHECK HIGH PRESSURE SUPPLY PUMP (VOLUMETRIC CONTROL VALVE)
EC-1454
< SYMPTOM DIAGNOSIS >
[K9K]
ERRATIC ACCELERATION
Perform the TEST 4: HIGH PRESSURE SUPPLY PUMP (VOLUMETRIC CONTROL VALVE). Refer to
.
>> GO TO 9.
9.
CHECK RAIL HIGH PRESSURE CONTROL CIRCUIT
Perform the TEST 5: RAIL HIGH PRESSURE CONTROL CIRCUIT CHECK. Refer to
INSPECTION : Special Repair Requirement (TEST 5: Rail High Pressure Regulation Check)"
.
>> GO TO 10.
10.
CHECK MAJOR LEAK IN FUEL INJECTOR/FUEL INJECTORS OPEN
Perform the TEST 6: MAJOR LEAK IN FUEL INJECTOR/FUEL INJECTORS OPEN. Refer to
.
>> GO TO 11.
11.
CHECK INCORRECT FUEL INJECTION QUANTITY
Perform the TEST 7: INCORRECT FUEL INJECTION QUANTITY. Refer to
Special Repair Requirement (TEST 7: Incorrect Fuel Injection Quantity)"
>> INSPECTION END
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