2004 INFINITI FX35 Service Manual

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Page 1657 of 4449

INFINITI FX35 2004 Service Manual EC-316
[VQ35DE]
DTC P0420, P0430 THREE WAY CATALYST FUNCTION
Revision: 2004 November 2004 FX35/FX45
DTC P0420, P0430 THREE WAY CATALYST FUNCTIONPFP:20905
On Board Diagnosis LogicABS006QH
The ECM monit

Page 1658 of 4449

INFINITI FX35 2004 Service Manual DTC P0420, P0430 THREE WAY CATALYST FUNCTION
EC-317
[VQ35DE]
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Revision: 2004 November 2004 FX35/FX45
8. Select “DTC & SRT CONFIRMATION” then “SRT WORK SUP-
PORT” mode

Page 1659 of 4449

INFINITI FX35 2004 Service Manual EC-318
[VQ35DE]
DTC P0420, P0430 THREE WAY CATALYST FUNCTION
Revision: 2004 November 2004 FX35/FX45
7. Make sure that the voltage switching frequency (high & low)
between ECM terminals 74 and ground,

Page 1660 of 4449

INFINITI FX35 2004 Service Manual DTC P0420, P0430 THREE WAY CATALYST FUNCTION
EC-319
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Revision: 2004 November 2004 FX35/FX45
4. CHECK IGNITION TIMING
Check the following items. Refer to EC-83, "
Basi

Page 1661 of 4449

INFINITI FX35 2004 Service Manual EC-320
[VQ35DE]
DTC P0420, P0430 THREE WAY CATALYST FUNCTION
Revision: 2004 November 2004 FX35/FX45
7. CHECK FUEL INJECTOR
1. Turn ignition switch OFF.
2. Remove injector assembly.
Refer to EM-45, "
F

Page 1662 of 4449

INFINITI FX35 2004 Service Manual DTC P0441 EVAP CONTROL SYSTEM
EC-321
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Revision: 2004 November 2004 FX35/FX45
DTC P0441 EVAP CONTROL SYSTEMPFP:14950
System DescriptionABS006QL
NOTE:
If DTC P0441 is d

Page 1663 of 4449

INFINITI FX35 2004 Service Manual EC-322
[VQ35DE]
DTC P0441 EVAP CONTROL SYSTEM
Revision: 2004 November 2004 FX35/FX45
Always perform test at a temperature of 5°C (41°F) or more.
WITH CONSULT-II
1. Start engine and warm it up to no

EC-322
[VQ35DE]
DTC P0441 EVAP CONTROL SYSTEM
Revision: 2004 November 2004 FX35/FX45
Always perform test at a temperature of 5°C (41°F) or more.
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 CONFIRMATION” 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-
323, "Diagnostic Procedure" .
Overall Function CheckABS006QO
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 (TCS switch or 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.
Selector lever Suitable position
Vehicle speed 32 - 120 km/h (20 - 75 MPH)
ENG SPEED 500 - 3,000 rpm
B/FUEL SCHDL 1.3 - 9.0 msec
Engine coolant temperature 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 1664 of 4449

INFINITI FX35 2004 Service Manual DTC P0441 EVAP CONTROL SYSTEM
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Revision: 2004 November 2004 FX35/FX45
8. Verify that EVAP control system pressure sensor value stays 0.1V less than the value a

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