Nissan Murano Z51. Manual - part 503

EC-20

< BASIC INSPECTION >

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INSPECTION AND ADJUSTMENT

4.

CHECK IDLE SPEED AND IGNITION TIMING

Rev up the engine 2 or 3 times and check that idle speed and ignition timing are within the specifications.
For procedure, refer to 

EC-16, "IDLE SPEED : Special Repair Requirement"

 and 

EC-17, "IGNITION TIMING :

Special Repair Requirement"

.

For specifications, refer to 

EC-536, "Idle Speed"

 and 

EC-536, "Ignition Timing"

.

Is the inspection result normal?

YES

>> INSPECTION END

NO

>> GO TO 5.

5.

DETECT MALFUNCTIONING PART-I

Check the following
• Check that throttle valve is fully closed.
• Check PCV valve operation.
• Check that downstream of throttle valve is free from air leakage.

Is the inspection result normal?

YES

>> GO TO 6.

NO

>> Repair or replace malfunctioning part.

6.

DETECT MALFUNCTIONING PART-II

Engine component parts and their installation condition are questionable. Check and eliminate the cause of
the incident.
It is useful to perform “TROUBLE DIAGNOSIS - SPECIFICATION VALUE”. Refer to 

EC-126, "Description"

.

If any of the following conditions occur after the engine has started, eliminate the cause of the incident and
perform Idle Air Volume Learning again:
• Engine stalls.
• Incorrect idle.

>> INSPECTION END

MIXTURE RATIO SELF-LEARNING VALUE CLEAR

MIXTURE RATIO SELF-LEARNING VALUE CLEAR : Description

INFOID:0000000005536483

This describes show to erase the mixture ratio self-learning value. For the actual procedure, follow the instruc-
tions in “Diagnosis Procedure”.

MIXTURE RATIO SELF-LEARNING VALUE CLEAR : Special Repair Requirement

INFOID:0000000005536484

1.

START

With CONSULT-III

1.

Start engine and warm it up to normal operating temperature.

2.

Select “SELF-LEARNING CONT” in “WORK SUPPORT” mode with CONSULT-III.

3.

Clear mixture ratio self-learning value by touching “CLEAR”.

With GST

1.

Start engine and warm it up to normal operating temperature.

2.

Turn ignition switch OFF.

3.

Disconnect mass air flow sensor harness connector.

4.

Restart engine and let it idle for at least 5 seconds.

5.

Stop engine and reconnect mass air flow sensor harness connector.

6.

Select Service $03 with GST. Check that DTC P0102 is detected.

7.

Select Service $04 with GST to erase the DTC P0102.

>> END

ENGINE CONTROL SYSTEM

EC-21

< SYSTEM DESCRIPTION >

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SYSTEM DESCRIPTION

ENGINE CONTROL SYSTEM

System Diagram

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JMBIA1136GB

EC-22

< SYSTEM DESCRIPTION >

[VQ35DE]

ENGINE CONTROL SYSTEM

System Description

INFOID:0000000005536486

ECM performs various controls such as fuel injection control and ignition timing control.

Component Parts Location

INFOID:0000000005536487

1.

Intake valve timing control solenoid 
valve (bank 1)

2.

Intake valve timing control solenoid 
valve (bank 2)

3.

Electronic controlled engine mount 
control solenoid valve

4.

Fuel injector (bank 2)

5.

A/F sensor 1 (bank 2)

6.

Cooling fan motor-2

7.

Ignition coil (with power transistor) 
and spark plug (bank 2)

8.

Camshaft position sensor (PHASE) 
(bank 2)

9.

Crankshaft position sensor (POS)

10. Engine coolant temperature sensor

11.

Cooling fan motor-1

12. ECM

13. Refrigerant pressure sensor

14. Battery current sensor

15. IPDM E/R

16. Mass air flow sensor (with intake air 

temperature sensor)

17. Electric throttle control actuator

18. EVAP service port

19. Power valve actuator 2

20. EVAP canister purge volume control 

solenoid valve

21. Camshaft position sensor (PHASE) 

(bank 1)

22. Ignition coil (with power transistor) 

and spark plug (bank 1)

23. A/F sensor 1 (bank 1)

24. Fuel injector (bank 1)

25. VIAS control solenoid valve 1 and 2

26. Power valve actuator 1

JMBIA1108ZZ

ENGINE CONTROL SYSTEM

EC-23

< SYSTEM DESCRIPTION >

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1.

Mas air flow sensor (with intake air 
temperature sensor)

2.

Electric throttle control actuator

: Vehicle front

1.

Ignition coil (with power transistor) 
and spark plug (bank 1)

2.

Fuel injector (bank 1)

3.

Fuel injector (bank 2)

4.

Ignition coil (with power transistor) 
and spark plug (bank 2)

5.

Knock sensor (bank 2)

6.

Knock sensor (bank 1)

: Vehicle front

1.

Crankshaft position sensor (POS)

2.

Camshaft position sensor (PHASE) 
(bank 1)

3.

Camshaft position sensor (PHASE) 
(bank 2)

: Vehicle front

JMBIA1109ZZ

JMBIA1110ZZ

JMBIA1114ZZ