Nissan Qashqai (2007-2010). Manual — part 488
ENGINE EMITS WHITE SMOKE (ESPECIALLY WHEN STARTING)
EC-1471
< SYMPTOM DIAGNOSIS >
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ENGINE EMITS WHITE SMOKE (ESPECIALLY WHEN STARTING)
Description
INFOID:0000000000912105
CHART 21: ENGINE EMITS WHITE SMOKE (ESPECIALLY WHEN STARTING)
Diagnosis Procedure
INFOID:0000000000912106
1.
CHECK FUEL
Check that the fuel reservoir is correctly filled and with the right fuel.
>> GO TO 2.
2.
CHECK COOLING SYSTEM
Check the cooling system. Refer to
CO-48, "Troubleshooting Chart"
Is the inspection result normal?
YES
>> GO TO 3.
NO
>> Repair or replace.
3.
CHECK GLOW SYSTEM
Check the glow system. Refer to
EC-1370, "Diagnosis Procedure"
.
Is the inspection result normal?
YES
>> GO TO 4.
NO
>> Repair or replace glow system. Refer to
EM-275, "Removal and Installation"
4.
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 5.
5.
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
EC-1472
< SYMPTOM DIAGNOSIS >
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EMISSION CONTROL NOT SATISFACTORY
EMISSION CONTROL NOT SATISFACTORY
Description
INFOID:0000000000912108
CHART 22: EMISSION CONTROL NOT SATISFACTORY
Diagnosis Procedure
INFOID:0000000000912109
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 AIR INTAKE SYSTEM
Check air intake system. Refer to
EM-265, "Removal and Installation"
.
Is the inspection result normal?
YES
>> GO TO 4.
NO
>> Repair or replace air intake system.
4.
CHECK ELECTRIC THROTTLE CONTROL ACTUATOR
Check electric throttle control actuator. Refer to
EC-1345, "Diagnosis Procedure"
.
Is the inspection result normal?
YES
>> GO TO 5.
NO
>> Repair or replace.
5.
CHECK MASS AIR FLOW SENSOR
Check mass air flow sensor. Refer to
EC-1337, "Component Inspection"
.
Is the inspection result normal?
YES
>> GO TO 6.
NO
>> Repair or replace.
6.
CHECK TURBOCHARGER
Check that the turbocharger is working properly. Refer to
EC-1410, "Diagnosis Procedure"
.
Is the turbocharger correct?
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 HIGH PRESSURE SUPPLY PUMP (PRESSURE CONTROL VALVE)
Perform the TEST 3: HIGH PRESSURE SUPPLY PUMP (PRESSURE CONTROL VALVE). Refer to
.
>> GO TO 9.
EMISSION CONTROL NOT SATISFACTORY
EC-1473
< SYMPTOM DIAGNOSIS >
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9.
CHECK HIGH PRESSURE SUPPLY PUMP (VOLUMETRIC CONTROL VALVE)
Perform the TEST 4: HIGH PRESSURE SUPPLY PUMP (VOLUMETRIC CONTROL VALVE). Refer to
.
>> GO TO 10.
10.
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 11.
11.
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 12.
12.
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
EC-1474
< PRECAUTION >
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PRECAUTIONS
PRECAUTION
PRECAUTIONS
Precaution for Supplemental Restraint System (SRS) "AIR BAG" and "SEAT BELT
PRE-TENSIONER"
INFOID:0000000001102479
The Supplemental Restraint System such as “AIR BAG” and “SEAT BELT PRE-TENSIONER”, used along
with a front seat belt, helps to reduce the risk or severity of injury to the driver and front passenger for certain
types of collision. This system includes seat belt switch inputs and dual stage front air bag modules. The SRS
system uses the seat belt switches to determine the front air bag deployment, and may only deploy one front
air bag, depending on the severity of a collision and whether the front occupants are belted or unbelted.
Information necessary to service the system safely is included in the SRC and SB section of this Service Man-
ual.
WARNING:
• To avoid rendering the SRS inoperative, which could increase the risk of personal injury or death in
the event of a collision which would result in air bag inflation, all maintenance must be performed by
an authorized NISSAN/INFINITI dealer.
• Improper maintenance, including incorrect removal and installation of the SRS, can lead to personal
injury caused by unintentional activation of the system. For removal of Spiral Cable and Air Bag
Module, see the SRC section.
• Do not use electrical test equipment on any circuit related to the SRS unless instructed to in this
Service Manual. SRS wiring harnesses can be identified by yellow and/or orange harnesses or har-
ness connectors.
Precaution for Procedure without Cowl Top Cover
INFOID:0000000001102480
When performing the procedure after removing cowl top cover, cover
the lower end of windshield with urethane, etc.
On Board Diagnostic (OBD) System of Engine
INFOID:0000000000913967
The ECM has an on board diagnostic system. It will light up the malfunction indicator (MI) to warn the driver of
a malfunction causing emission deterioration.
CAUTION:
• Be sure to turn the ignition switch OFF and disconnect the battery negative cable before any repair
or inspection work. The open/short circuit of related switches, sensors, solenoid valves, etc. will
cause the MI to light up.
• Be sure to connect and lock the connectors securely after work. A loose (unlocked) connector will
cause the MI to light up due to the open circuit. (Be sure the connector is free from water, grease,
dirt, bent terminals, etc.)
• Certain systems and components, especially those related to OBD, may use a new style slide-lock-
ing type harness connector. For description and how to disconnect, refer to
• Be sure to route and secure the harnesses properly after work. The interference of the harness with
a bracket, etc. may cause the MI to light up due to the short circuit.
• Be sure to connect rubber tubes properly after work. A misconnected or disconnected rubber tube
may cause the MI to light up due to the malfunction of the fuel system, etc.
• Be sure to erase the unnecessary malfunction information (repairs completed) from the ECM before
returning the vehicle to the customer.
General Precautions
INFOID:0000000000913950
PIIB3706J
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