Nissan Altima L32. Manual - part 501

EVAPORATIVE EMISSION SYSTEM

EC-1125

< FUNCTION DIAGNOSIS >

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Mass air flow sensor

EC-1194, "Description"

Throttle position sensor

EC-1215, "Description"

Component

Reference

EC-1126

< FUNCTION DIAGNOSIS >

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INTAKE VALVE TIMING CONTROL

INTAKE VALVE TIMING CONTROL

System Diagram

INFOID:0000000004361998

System Description

INFOID:0000000004361999

INPUT/OUTPUT SIGNAL CHART

*: This signal is sent to the ECM via the CAN communication line

SYSTEM DESCRIPTION

This mechanism hydraulically controls cam phases continuously with the fixed operating angle of the intake

valve.

The ECM receives signals such as crankshaft position, camshaft position, engine speed, and engine coolant

temperature. Then, the ECM sends ON/OFF pulse duty signals to the intake valve timing (IVT) control sole-

noid valve depending on driving status. This makes it possible to control the shut/open timing of the intake

valve to increase engine torque in low/mid speed range and output in high-speed range.

JMBIA1532GB

Sensor

Input signal to ECM

ECM function

Actuator

Crankshaft position sensor (POS)

Engine speed and piston position

Intake valve 
timing control

Intake valve timing control 
solenoid valve

Camshaft position sensor (PHASE)

Engine oil temperature sensor

Engine oil temperature

Engine coolant temperature sensor

Engine coolant temperature

Unified meter and A/C amp.

Vehicle speed*

JMBIA0060GB

INTAKE VALVE TIMING CONTROL

EC-1127

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Component Parts Location

INFOID:0000000004404411

1.

Power valve actuator 1

2.

Intake valve timing control solenoid 
valve (bank 1)

3.

Power steering pressure sensor

4.

Intake valve timing control solenoid 
valve (bank 2)

5.

VIAS control solenoid valves 1 and 2 6.

Fuel injector (bank 2)

7.

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

8.

Crankshaft position sensor (POS)

9.

Engine coolant temperature sensor

10. Camshaft position sensor (PHASE) 

(bank 2)

11. ECM

12. Refrigerant pressure sensor

13. Battery current sensor

14. PNP switch

15. Condenser-2

16. Mass air flow sensor (with intake air 

temperature sensor)

17. EVAP service port

18. Camshaft position sensor (PHASE) 

(bank 1)

19. Electric throttle control actuator

20. Power valve actuator 2

21. EVAP canister purge volume control 

solenoid valve

22. Ignition coil (with power transistor) 

and spark plug (bank 1)

23. Knock sensor

ALBIA0110ZZ

EC-1128

< FUNCTION DIAGNOSIS >

[VQ35DE]

INTAKE VALVE TIMING CONTROL

1.

Mas air flow sensor (with intake air 
temperature sensor)

2.

Air cleaner case

3.

Engine coolant temperature sensor

4.

EVAP canister purge volume control 
solenoid valve

5.

Power valve actuator 1

6.

VIAS control solenoid valve 1

7.

VIAS control solenoid valve 2

8.

Power valve actuator 2

9.

Power steering pressure sensor

10. Tie rod (RH)

11. Power valve actuator 2

12. Camshaft position sensor (PHASE) 

(bank 1)

13. Camshaft position sensor (PHASE) 

(bank 2)
: Vehicle front

ALBIA0101ZZ