Nissan Murano Z51. Manual - part 521

 

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Nissan Murano Z51. Manual - part 521

 

 

EC-92

< SYSTEM DESCRIPTION >

[VQ35DE]

INTAKE VALVE TIMING CONTROL

1.

Electronic controlled engine mount 
control solenoid valve

2.

VIAS control solenoid valve 1

3.

VIAS control solenoid valve 2

4.

EVAP canister purge volume control 
solenoid valve

5.

EVAP service port

6.

EVAP control system pressure sen-
sor

7.

EVAP canister vent control valve

8.

EVAP canister

: Vehicle front

1.

Intake valve timing control solenoid 
valve (bank 1)

2.

Intake valve timing control solenoid 
valve (bank 2)

3.

Data link connector

1.

Stop lamp switch

2.

ASCD brake switch

3.

Accelerator pedal position sensor

JMBIA1111ZZ

JMBIA1118ZZ

JMBIA1119ZZ

JMBIA1120ZZ

INTAKE VALVE TIMING CONTROL

EC-93

< SYSTEM DESCRIPTION >

[VQ35DE]

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Component Description

INFOID:0000000005536521

1.

ASCD steering switch

2.

CANSEL switch

3.

RESUME/ACCELERATE switch

4.

SET/COAST switch

5.

MAIN switch

1.

Fuel level sensor unit and fuel pump 
harness connector

2.

Fuel level sensor unit and fuel pump 3.

Fuel pressure regulator

: Vehicle front

JMBIA1121ZZ

Component

Reference

Camshaft position sensor (PHASE)

EC-258, "Description"

Crankshaft position sensor (POS)

EC-254, "Description"

Engine coolant temperature sensor

EC-167, "Description"

Engine oil temperature sensor

EC-236, "Description"

Intake valve timing control solenoid valve

EC-150, "Description"

EC-94

< SYSTEM DESCRIPTION >

[VQ35DE]

VARIABLE INDUCTION AIR SYSTEM

VARIABLE INDUCTION AIR SYSTEM

System Diagram

INFOID:0000000005536522

System Description

INFOID:0000000005536523

INPUT/OUTPUT SIGNAL CHART

*: ECM determines the start signal status by the signals of engine speed and battery voltage.

SYSTEM DESCRIPTION

In the medium speed range, the ECM sends the ON signal to the VIAS control solenoid valve. This signal
introduces the intake manifold vacuum into the power valve actuator and therefore closes the power valve.

JMBIA1831GB

Sensor

Input signal to ECM

ECM function

Actuator

Crankshaft position sensor (POS)
Camshaft position sensor (PHASE)

Engine speed*

VIAS control

VIAS control solenoid valve 1
VIAS control solenoid valve 2

Mass air flow sensor

Amount of intake air

Engine coolant temperature sensor

Engine coolant temperature

Throttle position sensor

Throttle position

Accelerator pedal position sensor

Accelerator pedal position

Battery

Battery voltage*

JMBIA0181GB

VARIABLE INDUCTION AIR SYSTEM

EC-95

< SYSTEM DESCRIPTION >

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Under this condition, the pressure waves of the exhaust stroke do not disturb the pressure waves of the intake
stroke of each opposite bank. Therefore, charging efficiency is increased together with the effect of the long
intake passage.
However, in the high speed range, the ECM sends the OFF signal to the VIAS control solenoid valve and the
power valve is opened. Under this condition, the pressure waves of intake stroke are resonant with those of
each opposite bank exhaust stroke. Therefore, charging efficiency is also increased.
In addition, both valves 1 and 2 are opened or closed in other ranges mentioned above. Thus maximum
charging efficiency is obtained for the various driving conditions.

VACUUM HOSE DRAWING

1.

Power valve actuator 1

2.

VIAS control solenoid valve 1

3.

VIAS control solenoid valve 2

4.

Power valve actuator 2

5.

Intake manifold collector

JMBIA0172ZZ

 

 

 

 

 

 

 

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