Nissan Qashqai J11. Manual - part 495

EC9-136

< WIRING DIAGRAM >

[R9M]

ENGINE CONTROL SYSTEM

JRBWC6118GB

BASIC INSPECTION

EC9-137

< BASIC INSPECTION >

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BASIC INSPECTION

BASIC INSPECTION

Work Procedure

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1.

INSPECTION START

1.

Check service records for any recent repairs that may indicate a related incident.

2.

Check the current need for scheduled maintenance, especially for fuel filter and air cleaner filter. Refer to

MA-37, "R9M : Periodic Maintenance"

.

3.

Open engine hood and check the following:

-

Harness connectors for improper connections

-

Vacuum hoses for splits, kinks, or improper connections

-

Wiring for improper connections, pinches, or cuts

4.

Start engine and warm it up to the normal operating tempera-
ture.

>> GO TO 2.

2.

CHECK IDLE SPEED

Check idle speed.
For procedure, refer to 

EC9-403, "Inspection"

.

For specification, refer to 

EC9-411, "Idle Speed"

.

Is the inspection result normal?

YES

>> INSPECTION END

NO

>> GO TO 3.

3.

CHECK FOR INTAKE AIR LEAK

1.

Stop engine.

2.

Listen for an intake air leak after the mass air flow sensor.

Is the inspection result normal?

YES

>> GO TO 4.

NO

>> Repair or replace. Refer to 

EM-380, "Exploded View"

.

4.

BLEED AIR FROM FUEL SYSTEM

Use priming pump to bleed air from fuel system. Refer to 

FL-47, "Air Bleeding"

.

>> GO TO 5.

5.

CHECK IDLE SPEED AGAIN

Check idle speed.
For procedure, refer to 

EC9-403, "Inspection"

.

For specification, refer to 

EC9-411, "Idle Speed"

.

Is the inspection result normal?

YES

>> INSPECTION END

NO

>> GO TO 6.

6.

DRAIN WATER FROM FUEL FILTER

1.

Stop engine.

2.

Drain water from fuel filter. Refer to 

FL-47, "Water Draining"

.

SEF142I

EC9-138

< BASIC INSPECTION >

[R9M]

BASIC INSPECTION

>> GO TO 7.

7.

CHECK IDLE SPEED AGAIN

Check idle speed.
For procedure, refer to 

EC9-403, "Inspection"

.

For specification, refer to 

EC9-411, "Idle Speed"

.

Is the inspection result normal?

YES

>> INSPECTION END

NO

>> GO TO 8.

8.

CHECK AIR CLEANER FILTER

1.

Stop engine.

2.

Check air cleaner filter for clogging or breaks.

Is the inspection result normal?

YES

>> GO TO 9.

NO

>> Replace air cleaner filter. Refer to 

EM-380, "Removal and Installation"

.

9.

CHECK BATTERY VOLTAGE

Check battery voltage.

Is the inspection result normal?

YES

>> GO TO 11.

NO

>> GO TO 10.

10.

CHECK BATTERY

Refer to 

PG-136, "FOR MAINTENANCE REQUIRED BATTERY MODELS : How to Handle Battery"

 (for main-

tenance required battery models) or 

PG-142, "FOR MAINTENANCE FREE BATTERY MODELS : How to

Handle Battery"

 (for maintenance free battery models).

Is the inspection result normal?

YES

>> Check charging system. Refer to 

CHG-15, "Work Flow"

.

NO

>> Repair or replace. Refer to 

PG-155, "Removal and Installation"

.

11.

CHECK COMPRESSION PRESSURE

Check compression pressure.

Is the inspection result normal?

YES

>> GO TO 12.

NO

>> Repair or replace error-detected parts.

12.

CHECK IDLE SPEED AGAIN

Check idle speed.
For procedure, refer to 

EC9-403, "Inspection"

.

For specification, refer to 

EC9-411, "Idle Speed"

.

Is the inspection result normal?

YES

>> INSPECTION END

NO

>> 1.

Replace fuel injector. Refer to 

EM-404, "Removal and Installation"

.

2.

Perform 

EC9-147, "Work Procedure"

.

3.

GO TO 2.

Voltage:

More than 12.13V

DIAGNOSIS AND REPAIR WORKFLOW

EC9-139

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DIAGNOSIS AND REPAIR WORKFLOW

Work Flow

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OVERALL SEQUENCE

DETAILED FLOW

1.

GET INFORMATION FOR SYMPTOM

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