2007 INFINITI M35 Factory Service Manual

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Page 1929 of 4647

INFINITI M35 2007 Factory Service Manual EC-400
[VQ35DE]
DTC P0443 EVAP CANISTER PURGE VOLUME CONTROL SOLENOID VALVE
Revision: 2007 April2007 M35/M45
DTC P0443 EVAP CANISTER PURGE VOLUME CONTROL SOLENOID VALVE
PFP:14920
DescriptionNBS004ZO
S

EC-400
[VQ35DE]
DTC P0443 EVAP CANISTER PURGE VOLUME CONTROL SOLENOID VALVE
Revision: 2007 April2007 M35/M45
DTC P0443 EVAP CANISTER PURGE VOLUME CONTROL SOLENOID VALVE
PFP:14920
DescriptionNBS004ZO
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 ModeNBS004ZP
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 controlEVAP 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 1Density 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 loadIdle
(Accelerator pedal: Not depressed even
slightly, after engine starting.)0%
2,000 rpm —

Page 1930 of 4647

INFINITI M35 2007 Factory Service Manual DTC P0443 EVAP CANISTER PURGE VOLUME CONTROL SOLENOID VALVE
EC-401
[VQ35DE]
C
D
E
F
G
H
I
J
K
L
MA
EC
Revision: 2007 April2007 M35/M45
On Board Diagnosis LogicNBS004ZQ
DTC Confirmation ProcedureNBS004

Page 1931 of 4647

INFINITI M35 2007 Factory Service Manual EC-402
[VQ35DE]
DTC P0443 EVAP CANISTER PURGE VOLUME CONTROL SOLENOID VALVE
Revision: 2007 April2007 M35/M45
Wiring DiagramNBS004ZS
TBWT0964E

Page 1932 of 4647

INFINITI M35 2007 Factory Service Manual DTC P0443 EVAP CANISTER PURGE VOLUME CONTROL SOLENOID VALVE
EC-403
[VQ35DE]
C
D
E
F
G
H
I
J
K
L
MA
EC
Revision: 2007 April2007 M35/M45
Specification data are reference values and are measured between

Page 1933 of 4647

INFINITI M35 2007 Factory Service Manual EC-404
[VQ35DE]
DTC P0443 EVAP CANISTER PURGE VOLUME CONTROL SOLENOID VALVE
Revision: 2007 April2007 M35/M45
Diagnostic ProcedureNBS004ZT
1. CHECK EVAP CANISTER PURGE VOLUME CONTROL SOLENOID VALVE POW

Page 1934 of 4647

INFINITI M35 2007 Factory Service Manual DTC P0443 EVAP CANISTER PURGE VOLUME CONTROL SOLENOID VALVE
EC-405
[VQ35DE]
C
D
E
F
G
H
I
J
K
L
MA
EC
Revision: 2007 April2007 M35/M45
4. CHECK EVAP CONTROL SYSTEM PRESSURE SENSOR CONNECTOR
1. Disconn

Page 1935 of 4647

INFINITI M35 2007 Factory Service Manual EC-406
[VQ35DE]
DTC P0443 EVAP CANISTER PURGE VOLUME CONTROL SOLENOID VALVE
Revision: 2007 April2007 M35/M45
10. CHECK IF EVAP CANISTER SATURATED WITH WATER
1. Remove EVAP canister with EVAP canister

Page 1936 of 4647

INFINITI M35 2007 Factory Service Manual DTC P0443 EVAP CANISTER PURGE VOLUME CONTROL SOLENOID VALVE
EC-407
[VQ35DE]
C
D
E
F
G
H
I
J
K
L
MA
EC
Revision: 2007 April2007 M35/M45
Component InspectionNBS004ZU
EVAP CANISTER PURGE VOLUME CONTROL S

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