Nissan Altima HL32 Hybrid. Manual - part 270

 

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Nissan Altima HL32 Hybrid. Manual - part 270

 

 

EC-64

< FUNCTION DIAGNOSIS >

[QR25DE]

EVAPORATIVE EMISSION SYSTEM

1.

Intake manifold collector

2.

EVAP service port

3.

EVAP canister purge volume control 
solenoid valve

 A.  From next figure

ALBIA0085ZZ

EVAPORATIVE EMISSION SYSTEM

EC-65

< FUNCTION DIAGNOSIS >

[QR25DE]

C

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EC

N

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O

NOTE:

Do not use soapy water or any type of solvent while installing vacuum hose or purge hoses.

System Description

INFOID:0000000004211340

INPUT/OUTPUT SIGNAL CHART

1.

EVAP control system pressure sensor 2.

EVAP canister (MAIN)

3.

EVAP canister (SUB)

4.

EVAP canister vent control valve

 A. To previous figure

ALBIA0153ZZ

EC-66

< FUNCTION DIAGNOSIS >

[QR25DE]

EVAPORATIVE EMISSION SYSTEM

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

SYSTEM DESCRIPTION

The evaporative emission system is used to reduce hydrocarbons emitted into the atmosphere from the fuel

system. This reduction of hydrocarbons is accomplished by activated charcoals in the EVAP canister.

The fuel vapor in the sealed fuel tank is led into the EVAP canister which contains activated carbon and the

vapor is stored there when the engine is not operating or when refueling to the fuel tank.

The vapor in the EVAP canister is purged by the air through the purge line to the intake manifold when the

engine is operating. EVAP canister purge volume control solenoid valve is controlled by ECM. When the

engine operates, the flow rate of vapor controlled by EVAP canister purge volume control solenoid valve is

proportionally regulated as the air flow increases.

EVAP canister purge volume control solenoid valve also shuts off the vapor purge line during decelerating and

idling.

Sensor

Input signal to ECM

ECM function

Actuator

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

Engine speed

EVAP canister 
purge flow control

EVAP canister purge vol-
ume control solenoid valve

Mass air flow sensor

Amount of intake air

Engine coolant temperature sensor

Engine coolant temperature

Battery

Battery voltage

Throttle position sensor

Throttle position

Air fuel ratio (A/F) sensor 1

Density of oxygen in exhaust gas
(Mixture ratio feedback signal)

Fuel tank temperature sensor

Fuel temperature in fuel tank

EVAP control system pressure sensor

Pressure in purge line

Brake ECU

Vehicle speed*

Hybrid vehicle control ECU

Vehicle speed*

Accelerator pedal position*

EVAPORATIVE EMISSION SYSTEM

EC-67

< FUNCTION DIAGNOSIS >

[QR25DE]

C

D

E

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EC

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Component Parts Location

INFOID:0000000004362523

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

 

 

 

 

 

 

 

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