2005 INFINITI FX35 Service Manual

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INFINITI FX35 2005 Service Manual EC-560
[VQ35DE]
DTC P1444 EVAP CANISTER PURGE VOLUME CONTROL SOLENOID VALVE
Revision: 2005 July 2005 FX
DTC P1444 EVAP CANISTER PURGE VOLUME CONTROL SOLENOID VALVE
PFP:14920
DescriptionABS006VU
SYSTEM

EC-560
[VQ35DE]
DTC P1444 EVAP CANISTER PURGE VOLUME CONTROL SOLENOID VALVE
Revision: 2005 July 2005 FX
DTC P1444 EVAP CANISTER PURGE VOLUME CONTROL SOLENOID VALVE
PFP:14920
DescriptionABS006VU
SYSTEM DESCRIPTION
*1: ECM determines the start signal status by the signals of engine speed and battery voltage.
*2: This signal is sent to the ECM through CAN communication line.
This system controls flow rate of fuel vapor from the EVAP canister. The opening of the vapor by-pass pas-
sage in the EVAP canister purge volume control solenoid valve changes to control the flow rate. The EVAP
canister purge volume control solenoid valve repeats ON/OFF operation according to the signal sent from the
ECM. The opening of the valve varies for optimum engine control. The optimum value stored in the ECM is
determined by considering various engine conditions. When the engine is operating, the flow rate of fuel vapor
from the EVAP canister is regulated as the air flow changes.
COMPONENT DESCRIPTION
The EVAP canister purge volume control solenoid valve uses a ON/
OFF duty to control the flow rate of fuel vapor from the EVAP canis-
ter. The EVAP canister purge volume control solenoid valve is
moved by ON/OFF pulses from the ECM. The longer the ON pulse,
the greater the amount of fuel vapor that will flow through the valve.
CONSULT-II Reference Value in Data Monitor ModeABS006VV
Specification data are reference values.
Sensor Input Signal to ECM ECM function Actuator
Crankshaft position sensor (POS)
Camshaft position sensor (PHASE) Engine speed*
1
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*
1
Throttle position sensor Throttle position
Accelerator pedal position sensor Accelerator pedal 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
Wheel sensor*
2Vehicle speed
SEF337U
MONITOR ITEM CONDITION SPECIFICATION
PURG VOL C/V
Engine: After warming up
Selector lever: P or N
Air conditioner switch: OFF
No-load Idle
(Accelerator pedal is not depressed
even slightly, after engine starting) 0%
2,000 rpm —

Page 1954 of 4731

INFINITI FX35 2005 Service Manual DTC P1444 EVAP CANISTER PURGE VOLUME CONTROL SOLENOID VALVE EC-561
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Revision: 2005 July 2005 FX
On Board Diagnosis LogicABS006VW
DTC Confirmation Proced

Page 1955 of 4731

INFINITI FX35 2005 Service Manual EC-562
[VQ35DE]
DTC P1444 EVAP CANISTER PURGE VOLUME CONTROL SOLENOID VALVE
Revision: 2005 July 2005 FX
Wiring DiagramABS006VY
TBWM0398E

Page 1956 of 4731

INFINITI FX35 2005 Service Manual DTC P1444 EVAP CANISTER PURGE VOLUME CONTROL SOLENOID VALVE EC-563
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Revision: 2005 July 2005 FX
Specification data are reference values and are measured

Page 1957 of 4731

INFINITI FX35 2005 Service Manual EC-564
[VQ35DE]
DTC P1444 EVAP CANISTER PURGE VOLUME CONTROL SOLENOID VALVE
Revision: 2005 July 2005 FX
Diagnostic ProcedureABS006VZ
1. CHECK EVAP CANISTER PURGE VOLUME CONTROL SOLENOID VALVE POWER SU

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INFINITI FX35 2005 Service Manual DTC P1444 EVAP CANISTER PURGE VOLUME CONTROL SOLENOID VALVE EC-565
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Revision: 2005 July 2005 FX
4. CHECK EVAP CONTROL SYSTEM PRESSURE SENSOR CONNECTOR

Page 1959 of 4731

INFINITI FX35 2005 Service Manual EC-566
[VQ35DE]
DTC P1444 EVAP CANISTER PURGE VOLUME CONTROL SOLENOID VALVE
Revision: 2005 July 2005 FX
10. CHECK IF EVAP CANISTER SATURATED WITH WATER
1. Remove EVAP canister with EVAP canister vent

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INFINITI FX35 2005 Service Manual DTC P1444 EVAP CANISTER PURGE VOLUME CONTROL SOLENOID VALVE EC-567
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Revision: 2005 July 2005 FX
Component InspectionABS006W0
EVAP CANISTER PURGE VOLUME

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