2005 INFINITI FX35 Service Manual

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Page 1481 of 4731

INFINITI FX35 2005 Service Manual EC-88
[VQ35DE]
BASIC SERVICE PROCEDURE
Revision: 2005 July 2005 FX
3. CHECK TARGET IDLE SPEED
With CONSULT-II
1. Run engine at about 2,000 rpm for about 2 minutes under no-load.
2. Rev engine (2,00

Page 1482 of 4731

INFINITI FX35 2005 Service Manual BASIC SERVICE PROCEDURE EC-89
[VQ35DE]
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Revision: 2005 July 2005 FX
6. PERFORM IDLE AIR VOLUME LEARNING
Perform EC-97, "
Idle Air Volume Learning" .
Is Idle

Page 1483 of 4731

INFINITI FX35 2005 Service Manual EC-90
[VQ35DE]
BASIC SERVICE PROCEDURE
Revision: 2005 July 2005 FX
10. CHECK IGNITION TIMING
1. Run engine at idle.
2. Check ignition timing with a timing light. Refer to EC-83, "
IGNI-
TION TIMIN

Page 1484 of 4731

INFINITI FX35 2005 Service Manual BASIC SERVICE PROCEDURE EC-91
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Revision: 2005 July 2005 FX
15. CHECK IGNITION TIMING AGAIN
1. Run engine at idle.
2. Check ignition timing with a timi

Page 1485 of 4731

INFINITI FX35 2005 Service Manual EC-92
[VQ35DE]
BASIC SERVICE PROCEDURE
Revision: 2005 July 2005 FX
19. CHECK AIR FUEL RATIO (A/F) SENSOR 1 FUNCTION
With CONSULT-II
1. Turn ignition switch OFF and wait at a least 10 seconds.
2. St

Page 1486 of 4731

INFINITI FX35 2005 Service Manual BASIC SERVICE PROCEDURE EC-93
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21. CHECK AIR FUEL RATIO (A/F) SENSOR 1 HARNESS
1. Turn ignition switch OFF and disconnect b

Page 1487 of 4731

INFINITI FX35 2005 Service Manual EC-94
[VQ35DE]
BASIC SERVICE PROCEDURE
Revision: 2005 July 2005 FX
25. CHECK CO%
With CONSULT-II
1. Start engine and warm it up until engine coolant temperature indicator points the middle of gauge

Page 1488 of 4731

INFINITI FX35 2005 Service Manual BASIC SERVICE PROCEDURE EC-95
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29. CHECK AIR FUEL RATIO (A/F) SENSOR 1 FUNCTION
With CONSULT-II
1. Turn ignition switch O

BASIC SERVICE PROCEDURE EC-95
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Revision: 2005 July 2005 FX
29. CHECK AIR FUEL RATIO (A/F) SENSOR 1 FUNCTION
With CONSULT-II
1. Turn ignition switch OFF and wait at a least 10 seconds.
2. Start engine and warm it up to normal operating temperature.
3. Drive the vehicle at a speed of 80 km/h (50 MPH) for a few minutes in D position with “OD” OFF. NOTE:
Keep the accelerator pedal as steady as possible during the cruising.
4. Then release the accelerator pedal fully until the vehicle speed decreases to 50 km/h (30 MPH). NOTE:
Never apply brake during releasing the accelerator pedal.
5. Repeat steps 3 to 4 for 5 times.
6. Stop the vehicle and connect CONSULT-II to the vehicle.
7. Make sure that no (1st trip) DTC is displayed in “SELF-DIAG RESULTS” mode.
OK or NG
OK >> GO TO 4.
NG >> GO TO 31.
30. CHECK AIR FUEL RATIO (A/F) SENSOR 1 FUNCTION
With GST
1. Turn ignition switch OFF and wait at a least 10 seconds.
2. Start engine and warm it up to normal operating temperature.
3. Drive the vehicle at a speed of 80 km/h (50 MPH) for a few minutes in D position with “OD” OFF. NOTE:
Keep the accelerator pedal as steady as possible during the cruising.
4. Then release the accelerator pedal fully until the vehicle speed decreases to 50 km/h (30 MPH). NOTE:
Never apply brake during releasing the accelerator pedal.
5. Repeat steps 3 to 4 for 5 times.
6. Stop the vehicle and connect GST to the vehicle.
7. Make sure that no (1st trip) DTC is displayed.
OK or NG
OK >> GO TO 4.
NG >> GO TO 31.
31. DETECT MALFUNCTIONING PART
Check the following.
Check fuel pressure regulator, and repair or replace if necessary. Refer to EC-99, "Fuel Pressure Check" .
Check mass air flow sensor and its circuit, and repair or replace if necessary. Refer to EC-186, "DTC
P0101 MAF SENSOR" and EC-195, "DTC P0102, P0103 MAF SENSOR" .
Check injector and its circuit, and repair or replace if necessary. Refer to EC-661, "INJECTOR CIRCUIT" .
Check engine coolant temperature sensor and its circuit, and repair or replace if necessary. Refer to EC-
208, "DTC P0117, P0118 ECT SENSOR" and EC-220, "DTC P0125 ECT SENSOR" .
OK or NG
OK >> GO TO 33.
NG >> 1. Repair or replace.
2. GO TO 32.

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