Nissan Altima HL32 Hybrid. Manual - part 272

EC-72

< FUNCTION DIAGNOSIS >

[QR25DE]

EVAPORATIVE EMISSION SYSTEM

Component Description

INFOID:0000000004211342

JMBIA0118GB

1.

Exhaust manifold cover

2.

Air fuel ratio (A/F) sensor 1

3.

Air fuel ratio (A/F) sensor 1 harness 
connector

4.

Heated oxygen sensor 2 harness 
connector

5.

Heated oxygen sensor 2

6.

Oil pan

7.

Heated oxygen sensor 3

8.

Heated oxygen sensor 3 harness 
connector

: Vehicle front

ALBIA0272ZZ

Component

Reference

A/F sensor 1

EC-179, "Description"

Camshaft position sensor (PHASE)

EC-255, "Description"

EVAPORATIVE EMISSION SYSTEM

EC-73

< FUNCTION DIAGNOSIS >

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C

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F

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Crankshaft position sensor (POS)

EC-251, "Description"

Engine coolant temperature sensor

EC-166, "Description"

EVAP canister purge volume control solenoid valve

EC-268, "Description"

EVAP control system pressure sensor

EC-284, "Description"

Fuel tank temperature sensor

EC-231, "Description"

Mass air flow sensor

EC-144, "Description"

Throttle position sensor

EC-169, "Description"

Vehicle speed sensor

EC-310, "Description"

Component

Reference

EC-74

< FUNCTION DIAGNOSIS >

[QR25DE]

INTAKE VALVE TIMING CONTROL

INTAKE VALVE TIMING CONTROL

System Diagram

INFOID:0000000004211343

System Description

INFOID:0000000004211344

INPUT/OUTPUT SIGNAL CHART

*: This signal is sent to the ECM through 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.

JMBIA0460GB

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 coolant temperature sensor

Engine coolant temperature

Brake ECU

Vehicle speed*

Hybrid vehicle control ECU

Vehicle speed*

INTAKE VALVE TIMING CONTROL

EC-75

< FUNCTION DIAGNOSIS >

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D

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F

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Component Parts Location

INFOID:0000000004362526

1.

Intake valve timing control solenoid 
valve

2.

Ignition coil (with power transistor) 
and spark plug

3.

Knock sensor,
Crankshaft position sensor (POS)

4.

Air fuel ratio (A/F) sensor 1

5.

Camshaft position sensor (PHASE)

6.

Engine coolant temperature sensor

7.

ECM

8.

Refrigerant pressure sensor

9.

IPDM E/R

10. Mass air flow sensor (with intake 

temperature sensor)

11. EVAP service port

12. Electric throttle control actuator (with 

built in throttle position sensor and 
throttle control motor)

13. EVAP canister purge volume control 

solenoid valve

14. Fuel injector

ALBIA0138ZZ