2007 INFINITI FX35 Service Manual

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Page 1777 of 4366

INFINITI FX35 2007 Service Manual DTC P0443 EVAP CANISTER PURGE VOLUME CONTROL SOLENOID VALVE EC-401
[VQ35DE]
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EC
Revision: 2006 July 2007 FX35/FX45
4. CHECK EVAP CONTROL SYSTEM PRESSURE SENSOR CONN

Page 1778 of 4366

INFINITI FX35 2007 Service Manual EC-402
[VQ35DE]
DTC P0443 EVAP CANISTER PURGE VOLUME CONTROL SOLENOID VALVE
Revision: 2006 July 2007 FX35/FX45
10. CHECK IF EVAP CANISTER SATURATED WITH WATER
1. Remove EVAP canister with EVAP canist

Page 1779 of 4366

INFINITI FX35 2007 Service Manual DTC P0443 EVAP CANISTER PURGE VOLUME CONTROL SOLENOID VALVE EC-403
[VQ35DE]
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Revision: 2006 July 2007 FX35/FX45
Component InspectionNBS003WN
EVAP CANISTER PURGE

Page 1780 of 4366

INFINITI FX35 2007 Service Manual EC-404
[VQ35DE]
DTC P0444, P0445 EVAP CANISTER PURGE VOLUME CONTROL SOLENOID VALVE
Revision: 2006 July 2007 FX35/FX45
DTC P0444, P0445 EVAP CANISTER PURGE VOLUME CONTROL SOLENOID
VA LV E
PFP:14920

EC-404
[VQ35DE]
DTC P0444, P0445 EVAP CANISTER PURGE VOLUME CONTROL SOLENOID VALVE
Revision: 2006 July 2007 FX35/FX45
DTC P0444, P0445 EVAP CANISTER PURGE VOLUME CONTROL SOLENOID
VA LV E
PFP:14920
DescriptionNBS003R0
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 ModeNBS003R1
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 Vehicle speed*
2
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 1781 of 4366

INFINITI FX35 2007 Service Manual DTC P0444, P0445 EVAP CANISTER PURGE VOLUME CONTROL SOLENOID VALVE
EC-405
[VQ35DE]
C
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M A
EC
Revision: 2006 July 2007 FX35/FX45
On Board Diagnosis LogicNBS003R2
DTC Con

Page 1782 of 4366

INFINITI FX35 2007 Service Manual EC-406
[VQ35DE]
DTC P0444, P0445 EVAP CANISTER PURGE VOLUME CONTROL SOLENOID VALVE
Revision: 2006 July 2007 FX35/FX45
Wiring DiagramNBS003R4
TBWM1390E

Page 1783 of 4366

INFINITI FX35 2007 Service Manual DTC P0444, P0445 EVAP CANISTER PURGE VOLUME CONTROL SOLENOID VALVE
EC-407
[VQ35DE]
C
D E
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M A
EC
Revision: 2006 July 2007 FX35/FX45
Specification data are reference values

Page 1784 of 4366

INFINITI FX35 2007 Service Manual EC-408
[VQ35DE]
DTC P0444, P0445 EVAP CANISTER PURGE VOLUME CONTROL SOLENOID VALVE
Revision: 2006 July 2007 FX35/FX45
Diagnostic ProcedureNBS003R5
1. CHECK EVAP CANISTER PURGE VOLUME CONTROL SOLENOI

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