2007 INFINITI M35 Factory Service Manual

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Page 1913 of 4647

INFINITI M35 2007 Factory Service Manual EC-384
[VQ35DE]
DTC P0420, P0430 THREE WAY CATALYST FUNCTION
Revision: 2007 April2007 M35/M45
7. CHECK FUNCTION OF IGNITION COIL-II
1. Turn ignition switch OFF.
2. Disconnect spark plug and connect a

Page 1914 of 4647

INFINITI M35 2007 Factory Service Manual DTC P0420, P0430 THREE WAY CATALYST FUNCTION
EC-385
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Revision: 2007 April2007 M35/M45
11 . CHECK INTERMITTENT INCIDENT
Refer to EC-153, "
TROUBLE DIAGNOSIS FOR INTER

Page 1915 of 4647

INFINITI M35 2007 Factory Service Manual EC-386
[VQ35DE]
DTC P0441 EVAP CONTROL SYSTEM
Revision: 2007 April2007 M35/M45
DTC P0441 EVAP CONTROL SYSTEMPFP:14950
System DescriptionNBS004ZG
NOTE:
If DTC P0441 is displayed with other DTC such as

Page 1916 of 4647

INFINITI M35 2007 Factory Service Manual DTC P0441 EVAP CONTROL SYSTEM
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WITH CONSULT-II
1. Start engine and warm it up to normal operating temperature.
2. Turn igniti

DTC P0441 EVAP CONTROL SYSTEM
EC-387
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WITH CONSULT-II
1. Start engine and warm it up to normal operating temperature.
2. Turn ignition switch OFF and wait at least 10 seconds.
3. Start engine and let it idle for at least 70 seconds.
4. Select “PURG FLOW P0441” of “EVAPORATIVE SYSTEM” in “DTC WORK SUPPORT” mode with CON-
SULT-II.
5. Touch “START”.
If “COMPLETED” is displayed, go to step 7.
6. When the following conditions are met, “TESTING” will be displayed on the CONSULT-II screen. Maintain
the conditions continuously until “TESTING” changes to “COMPLETED”. (It will take at least 35 seconds.)
If “TESTING” is not changed for a long time, retry from step 2.
7. Make sure that “OK” is displayed after touching “SELF-DIAG RESULTS”. If “NG” is displayed, refer to EC-
388, "Diagnostic Procedure" .
Overall Function CheckNBS004ZJ
Use this procedure to check the overall monitoring function of the EVAP control system purge flow monitoring.
During this check, a 1st trip DTC might not be confirmed.
WITH GST
1. Lift up drive wheels.
2. Start engine (VDC switch OFF) and warm it up to normal operating temperature.
3. Turn ignition switch OFF, wait at least 10 seconds.
4. Start engine and wait at least 70 seconds.
5. Set voltmeter probes to ECM terminals 32 (EVAP control system
pressure sensor signal) and ground.
6. Check EVAP control system pressure sensor value at idle speed
and note it.
7. Establish and maintain the following conditions for at least 1
minute.
8. Verify that EVAP control system pressure sensor value stays 0.1V less than the value at idle speed (mea-
sured at step 6) for at least 1 second.
Selector lever Suitable position
VHCL SPEED SE 32 - 120 km/h (20 - 75 MPH)
ENG SPEED 500 - 3,000 rpm
B/FUEL SCHDL 1.3 - 9.0 msec
COOLAN TEMP/S 70 - 100°C (158 - 212°F)
PBIB0826E
Air conditioner switch ON
Headlamp switch ON
Rear window defogger switch ON
Engine speed Approx. 3,000 rpm
Gear position Any position other than P, N or R
PBIB1109E

Page 1917 of 4647

INFINITI M35 2007 Factory Service Manual EC-388
[VQ35DE]
DTC P0441 EVAP CONTROL SYSTEM
Revision: 2007 April2007 M35/M45
9. If NG, go to EC-388, "Diagnostic Procedure" .
Diagnostic ProcedureNBS004ZK
1. CHECK EVAP CANISTER
1. Turn ignition swi

Page 1918 of 4647

INFINITI M35 2007 Factory Service Manual DTC P0441 EVAP CONTROL SYSTEM
EC-389
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Revision: 2007 April2007 M35/M45
4. CHECK EVAP PURGE LINE
1. Turn ignition switch OFF.
2. Check EVAP purge line for improper con

Page 1919 of 4647

INFINITI M35 2007 Factory Service Manual EC-390
[VQ35DE]
DTC P0441 EVAP CONTROL SYSTEM
Revision: 2007 April2007 M35/M45
8. CHECK EVAP CONTROL SYSTEM PRESSURE SENSOR CONNECTOR
1. Disconnect EVAP control system pressure sensor harness connecto

Page 1920 of 4647

INFINITI M35 2007 Factory Service Manual DTC P0442 EVAP CONTROL SYSTEM
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Revision: 2007 April2007 M35/M45
DTC P0442 EVAP CONTROL SYSTEMPFP:14950
On Board Diagnosis LogicNBS004ZL
This diagnosis detects

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