Page 2256 of 4449
![INFINITI FX35 2004 Service Manual DTC P0171, P0174 FUEL INJECTION SYSTEM FUNCTION
EC-915
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Revision: 2004 November 2004 FX35/FX45
WITH GST
1. Start engine and warm it up to normal operating temperatur INFINITI FX35 2004 Service Manual DTC P0171, P0174 FUEL INJECTION SYSTEM FUNCTION
EC-915
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Revision: 2004 November 2004 FX35/FX45
WITH GST
1. Start engine and warm it up to normal operating temperatur](/manual-img/42/57021/w960_57021-2255.png)
DTC P0171, P0174 FUEL INJECTION SYSTEM FUNCTION
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Revision: 2004 November 2004 FX35/FX45
WITH GST
1. Start engine and warm it up to normal operating temperature.
2. Turn ignition switch OFF and wait at least 10 seconds.
3. Disconnect mass air flow sensor harness connector. Then
restart and run engine for at least 5 seconds at idle speed.
4. Stop engine and reconnect mass air flow sensor harness con-
nector.
5. Select MODE 3 with GST. Make sure DTC P0102 is detected.
6. Select MODE 4 with GST and erase the DTC P0102.
7. Start engine again and let it idle for at least 10 minutes.
8. Select MODE 7 with GST. The 1st trip DTC P0171 or P0174
should be detected at this stage, if a malfunction exists. If so, go
to EC-918, "
Diagnostic Procedure" .
9. If it is difficult to start engine at step 7, the fuel injection system
has a malfunction.
10. Crank engine while depressing accelerator pedal. If engine starts, go to EC-918, "
Diagnostic Procedure" .
If engine does not start, check exhaust and intake air leak visually.
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Page 2265 of 4449
![INFINITI FX35 2004 Service Manual EC-924
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DTC P0172, P0175 FUEL INJECTION SYSTEM FUNCTION
Revision: 2004 November 2004 FX35/FX45
WITH GST
1. Start engine and warm it up to normal operating temperature.
2. Turn ignition switch INFINITI FX35 2004 Service Manual EC-924
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DTC P0172, P0175 FUEL INJECTION SYSTEM FUNCTION
Revision: 2004 November 2004 FX35/FX45
WITH GST
1. Start engine and warm it up to normal operating temperature.
2. Turn ignition switch](/manual-img/42/57021/w960_57021-2264.png)
EC-924
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DTC P0172, P0175 FUEL INJECTION SYSTEM FUNCTION
Revision: 2004 November 2004 FX35/FX45
WITH GST
1. Start engine and warm it up to normal operating temperature.
2. Turn ignition switch OFF and wait at least 10 seconds.
3. Disconnect mass air flow sensor harness connector. Then
restart and run engine for at least 5 seconds at idle speed.
4. Stop engine and reconnect mass air flow sensor harness con-
nector.
5. Select MODE 3 with GST. Make sure DTC P0102 is detected.
6. Select MODE 4 with GST and erase the DTC P0102.
7. Start engine again and let it idle for at least 10 minutes.
8. Select MODE 7 with GST. The 1st trip DTC P0172 or P0175
should be detected at this stage, if a malfunction exists. If so, go
to EC-927, "
Diagnostic Procedure" .
9. If it is difficult to start engine at step 7, the fuel injection system
has a malfunction.
10. Crank engine while depressing accelerator pedal.
If engine starts, go to EC-927, "
Diagnostic Procedure" . If engine does not start, remove ignition plugs and
check for fouling, etc.
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Page 2291 of 4449
![INFINITI FX35 2004 Service Manual EC-950
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DTC P0300 - P0308 MULTIPLE CYLINDER MISFIRE, NO. 1 - 8 CYLINDER MIS-
FIRE
Revision: 2004 November 2004 FX35/FX45
WITH CONSULT-II
1. Turn ignition switch ON, and select “DATA MONITOR INFINITI FX35 2004 Service Manual EC-950
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DTC P0300 - P0308 MULTIPLE CYLINDER MISFIRE, NO. 1 - 8 CYLINDER MIS-
FIRE
Revision: 2004 November 2004 FX35/FX45
WITH CONSULT-II
1. Turn ignition switch ON, and select “DATA MONITOR](/manual-img/42/57021/w960_57021-2290.png)
EC-950
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DTC P0300 - P0308 MULTIPLE CYLINDER MISFIRE, NO. 1 - 8 CYLINDER MIS-
FIRE
Revision: 2004 November 2004 FX35/FX45
WITH CONSULT-II
1. Turn ignition switch ON, and select “DATA MONITOR” mode
with CONSULT-II.
2. Start engine and warm it up to normal operating temperature.
3. Turn ignition switch OFF and wait at least 10 seconds.
4. Restart engine and let it idle for about 15 minutes.
5. If 1st trip DTC is detected, go to EC-950, "
Diagnostic Procedure"
.
NOTE:
If 1st trip DTC is not detected during above procedure, performing
the following procedure is advised.
1. Turn ignition switch OFF and wait at least 10 seconds.
2. Start engine and drive the vehicle under the similar conditions to (1st trip) Freeze Frame Data for a certain
time. Refer to the table below.
Hold the accelerator pedal as steady as possible.
The similar conditions to (1st trip) Freeze Frame Data means the vehicle operation that the following con-
ditions should be satisfied at the same time.
The time to driving varies according to the engine speed in the freeze frame data.
WITH GST
Follow the procedure “WITH CONSULT-II” above.
Diagnostic ProcedureABS00C4Q
1. CHECK FOR INTAKE AIR LEAK AND PCV HOSE
1. Start engine and run it at idle speed.
2. Listen for the sound of the intake air leak.
3. Check PCV hose connection.
OK or NG
OK >> GO TO 2.
NG >> Discover air leak location and repair.
2. CHECK FOR EXHAUST SYSTEM CLOGGING
Stop engine and visually check exhaust tube, three way catalyst and muffler for dents.
OK or NG
OK >> GO TO 3.
NG >> Repair or replace it.
PBIB0164E
Engine speed Engine speed in the freeze frame data ± 400 rpm
Vehicle speed Vehicle speed in the freeze frame data ± 10 km/h (6 MPH)
Engine coolant temperature
(T) conditionWhen the freeze frame data shows lower than 70 °C (158 °F),
T should be lower than 70 °C (158 °F).
When the freeze frame data shows higher than or equal to 70 °C (158 °F),
T should be higher than or equal to 70 °C (158 °F).
Engine speed Time
Around 1,000 rpm Approximately 10 minutes
Around 2,000 rpm Approximately 5 minutes
More than 3,000 rpm Approximately 3.5 minutes
Page 2313 of 4449
![INFINITI FX35 2004 Service Manual EC-972
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DTC P0420, P0430 THREE WAY CATALYST FUNCTION
Revision: 2004 November 2004 FX35/FX45
8. Select “DTC & SRT CONFIRMATION” then “SRT WORK SUP-
PORT” mode with CONSULT-II.
9. Rev en INFINITI FX35 2004 Service Manual EC-972
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DTC P0420, P0430 THREE WAY CATALYST FUNCTION
Revision: 2004 November 2004 FX35/FX45
8. Select “DTC & SRT CONFIRMATION” then “SRT WORK SUP-
PORT” mode with CONSULT-II.
9. Rev en](/manual-img/42/57021/w960_57021-2312.png)
EC-972
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DTC P0420, P0430 THREE WAY CATALYST FUNCTION
Revision: 2004 November 2004 FX35/FX45
8. Select “DTC & SRT CONFIRMATION” then “SRT WORK SUP-
PORT” mode with CONSULT-II.
9. Rev engine up to 2,000 to 3,000 rpm and hold it for 3 consecu-
tive minutes then release the accelerator pedal completely.
If “INCMP” of “CATALYST” changed to “CMPLT”, go to step 12.
10. Wait 5 seconds at idle.
11. Rev engine up to 2,000 to 3,000 rpm and maintain it until
“INCMP” of “CATALYST” changes to “CMPLT” (It will take
approximately 5 minutes).
If not “CMPLT”, stop engine and cool it down to less than 70°C
(158°F) and then retest from step 1.
12. Select “SELF-DIAG RESULTS” mode with CONSULT-II.
13. Confirm that the 1st trip DTC is not detected.
If the 1st trip DTC is detected, go to EC-973, "
Diagnostic Proce-
dure" .
Overall Function CheckABS00C5F
Use this procedure to check the overall function of the three way catalyst (manifold). During this check, a 1st
trip DTC might not be confirmed.
WITH GST
1. Turn ignition switch OFF and wait at least 10 seconds.
2. Start engine and keep the engine speed between 3,500 and 4,000 rpm for at least 1 minute under no load.
3. Let engine idle for 1 minute.
4. Open engine hood.
5. Set voltmeters probes between ECM terminals 16 [HO2S1
(bank 1) signal], 35 [HO2S1 (bank 2) signal] and ground, and
ECM terminals 55 [HO2S2 (bank 1) signal], 74 [HO2S2 (bank 2)
signal] and ground.
6. Keep engine speed at 2,000 rpm constant under no load.
SEF940Z
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Page 2319 of 4449
![INFINITI FX35 2004 Service Manual EC-978
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DTC P0441 EVAP CONTROL SYSTEM
Revision: 2004 November 2004 FX35/FX45
9. If NG, go to EC-978, "Diagnostic Procedure" .
Diagnostic ProcedureABS00C5L
1. CHECK EVAP CANISTER
1. Turn igniti INFINITI FX35 2004 Service Manual EC-978
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DTC P0441 EVAP CONTROL SYSTEM
Revision: 2004 November 2004 FX35/FX45
9. If NG, go to EC-978, "Diagnostic Procedure" .
Diagnostic ProcedureABS00C5L
1. CHECK EVAP CANISTER
1. Turn igniti](/manual-img/42/57021/w960_57021-2318.png)
EC-978
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DTC P0441 EVAP CONTROL SYSTEM
Revision: 2004 November 2004 FX35/FX45
9. If NG, go to EC-978, "Diagnostic Procedure" .
Diagnostic ProcedureABS00C5L
1. CHECK EVAP CANISTER
1. Turn ignition switch OFF.
2. Check EVAP canister for cracks.
OK or NG
OK (With CONSULT-II)>>GO TO 2.
OK (Without CONSULT-II)>>GO TO 3.
NG >> Replace EVAP canister.
2. CHECK PURGE FLOW
With CONSULT-II
1. Disconnect vacuum hose connected to EVAP canister purge volume control solenoid valve at EVAP ser-
vice port and install vacuum gauge. For the location of EVAP service port, refer to EC-1321, "
EVAPORA-
TIVE EMISSION LINE DRAWING" .
2. Start engine and let it idle.
3. Select “PURG VOL CONT/V” in “ACTIVE TEST” mode with CONSULT-II.
4. Rev engine up to 2,000 rpm.
5. Touch “Qd” and “Qu” on CONSULT-II screen to adjust “PURG
VOL CONT/V” opening and check vacuum existence.
OK or NG
OK >> GO TO 7.
NG >> GO TO 4.
3. CHECK PURGE FLOW
Without CONSULT-II
1. Start engine and warm it up to normal operating temperature.
2. Stop engine.
3. Disconnect vacuum hose connected to EVAP canister purge volume control solenoid valve at EVAP ser-
vice port and install vacuum gauge. For the location of EVAP service port, refer to EC-1321, "
EVAPORA-
TIVE EMISSION LINE DRAWING" .
4. Start engine and let it idle for at least 80 seconds.
5. Check vacuum gauge indication when revving engine up to 2,000 rpm.
6. Release the accelerator pedal fully and let idle.
OK or NG
OK >> GO TO 7.
NG >> GO TO 4.
PURG VOL CONT/V Vacuum
100% Should exist.
0% Should not exist.
PBIB1678E
Vacuum should exist.
Vacuum should not exist.
Page 2329 of 4449
![INFINITI FX35 2004 Service Manual EC-988
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DTC P0442 EVAP CONTROL SYSTEM
Revision: 2004 November 2004 FX35/FX45
13. CHECK EVAP CANISTER PURGE VOLUME CONTROL SOLENOID VALVE OPERATION
Without CONSULT-II
1. Start engine and warm INFINITI FX35 2004 Service Manual EC-988
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DTC P0442 EVAP CONTROL SYSTEM
Revision: 2004 November 2004 FX35/FX45
13. CHECK EVAP CANISTER PURGE VOLUME CONTROL SOLENOID VALVE OPERATION
Without CONSULT-II
1. Start engine and warm](/manual-img/42/57021/w960_57021-2328.png)
EC-988
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DTC P0442 EVAP CONTROL SYSTEM
Revision: 2004 November 2004 FX35/FX45
13. CHECK EVAP CANISTER PURGE VOLUME CONTROL SOLENOID VALVE OPERATION
Without CONSULT-II
1. Start engine and warm it up to normal operating temperature.
2. Stop engine.
3. Disconnect vacuum hose to EVAP canister purge volume control solenoid valve at EVAP service port.
4. Start engine and let it idle for at least 80 seconds.
5. Check vacuum hose for vacuum when revving engine up to 2,000 rpm.
OK or NG
OK >> GO TO 16.
NG >> GO TO 14.
14. CHECK VACUUM HOSE
Check vacuum hoses for clogging or disconnection. Refer to EC-677, "
Vacuum Hose Drawing" .
OK or NG
OK >> GO TO 15.
NG >> Repair or reconnect the hose.
15. CHECK EVAP CANISTER PURGE VOLUME CONTROL SOLENOID VALVE
Refer to EC-995, "
Component Inspection" .
OK or NG
OK >> GO TO 16.
NG >> Replace EVAP canister purge volume control solenoid valve.
16. CHECK FUEL TANK TEMPERATURE SENSOR
Refer to EC-936, "
Component Inspection" .
OK or NG
OK >> GO TO 17.
NG >> Replace fuel level sensor unit.
17. CHECK EVAP CONTROL SYSTEM PRESSURE SENSOR
Refer to EC-1013, "
Component Inspection" .
OK or NG
OK >> GO TO 18.
NG >> Replace EVAP control system pressure sensor.
18. CHECK EVAP PURGE LINE
Check EVAP purge line (pipe, rubber tube, fuel tank and EVAP canister) for cracks or improper connection.
Refer to EC-1321, "
EVAPORATIVE EMISSION LINE DRAWING" .
OK or NG
OK >> GO TO 19.
NG >> Repair or reconnect the hose.
19. CLEAN EVAP PURGE LINE
Clean EVAP purge line (pipe and rubber tube) using air blower.
>> GO TO 20. Vacuum should exist.
Page 2365 of 4449
![INFINITI FX35 2004 Service Manual EC-1024
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DTC P0455 EVAP CONTROL SYSTEM
Revision: 2004 November 2004 FX35/FX45
WITH GST
NOTE:
Be sure to read the explanation of EC-713, "
Driving Pattern" before driving vehicle.
1. Start en INFINITI FX35 2004 Service Manual EC-1024
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DTC P0455 EVAP CONTROL SYSTEM
Revision: 2004 November 2004 FX35/FX45
WITH GST
NOTE:
Be sure to read the explanation of EC-713, "
Driving Pattern" before driving vehicle.
1. Start en](/manual-img/42/57021/w960_57021-2364.png)
EC-1024
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DTC P0455 EVAP CONTROL SYSTEM
Revision: 2004 November 2004 FX35/FX45
WITH GST
NOTE:
Be sure to read the explanation of EC-713, "
Driving Pattern" before driving vehicle.
1. Start engine.
2. Drive vehicle according to EC-713, "
Driving Pattern" .
3. Stop vehicle.
4. Turn ignition switch OFF, wait at least 10 seconds and then turn ON.
5. Select MODE 7 with GST.
If P0455 is displayed on the screen, go to EC-1024, "Diagnostic Procedure" .
If P0442 is displayed on the screen, go to EC-983, "Diagnostic Procedure" .
If P0441 is displayed on the screen, go to EC-978, "Diagnostic Procedure" .
Diagnostic ProcedureABS00C6Q
1. CHECK FUEL FILLER CAP DESIGN
1. Turn ignition switch OFF.
2. Check for genuine NISSAN fuel filler cap design.
OK or NG
OK >> GO TO 2.
NG >> Replace with genuine NISSAN fuel filler cap.
2. CHECK FUEL FILLER CAP INSTALLATION
Check that the cap is tightened properly by rotating the cap clockwise.
OK or NG
OK >> GO TO 3.
NG >> 1. Open fuel filler cap, then clean cap and fuel filler neck threads using air blower.
2. Retighten until ratcheting sound is heard.
3. CHECK FUEL FILLER CAP FUNCTION
Check for air releasing sound while opening the fuel filler cap.
OK or NG
OK >> GO TO 5.
NG >> GO TO 4.
4. CHECK FUEL TANK VACUUM RELIEF VALVE
Refer to EC-1323, "
FUEL TANK VACUUM RELIEF VALVE (BUILT INTO FUEL FULLER CAP)" .
OK or NG
OK >> GO TO 5.
NG >> Replace fuel filler cap with a genuine one.
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Page 2369 of 4449
![INFINITI FX35 2004 Service Manual EC-1028
[VK45DE]
DTC P0455 EVAP CONTROL SYSTEM
Revision: 2004 November 2004 FX35/FX45
12. CHECK EVAP CANISTER PURGE VOLUME CONTROL SOLENOID VALVE OPERATION
Without CONSULT-II
1. Start engine and warm INFINITI FX35 2004 Service Manual EC-1028
[VK45DE]
DTC P0455 EVAP CONTROL SYSTEM
Revision: 2004 November 2004 FX35/FX45
12. CHECK EVAP CANISTER PURGE VOLUME CONTROL SOLENOID VALVE OPERATION
Without CONSULT-II
1. Start engine and warm](/manual-img/42/57021/w960_57021-2368.png)
EC-1028
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DTC P0455 EVAP CONTROL SYSTEM
Revision: 2004 November 2004 FX35/FX45
12. CHECK EVAP CANISTER PURGE VOLUME CONTROL SOLENOID VALVE OPERATION
Without CONSULT-II
1. Start engine and warm it up to normal operating temperature.
2. Stop engine.
3. Disconnect vacuum hose to EVAP canister purge volume control solenoid valve at EVAP service port.
4. Start engine and let it idle for at least 80 seconds.
5. Check vacuum hose for vacuum when revving engine up to 2,000 rpm.
OK or NG
OK >> GO TO 15.
NG >> GO TO 13.
13. CHECK VACUUM HOSE
Check vacuum hoses for clogging or disconnection. Refer to EC-677, "
Vacuum Hose Drawing" .
OK or NG
OK (With CONSULT-II)>>GO TO 14.
OK (Without CONSULT-II)>>GO TO 15.
NG >> Repair or reconnect the hose.
14. CHECK EVAP CANISTER PURGE VOLUME CONTROL SOLENOID VALVE
With CONSULT-II
1. Start engine.
2. Perform “PURG VOL CONT/V” in “ACTIVE TEST” mode with
CONSULT-II. Check that engine speed varies according to the
valve opening.
OK or NG
OK >> GO TO 16.
NG >> GO TO 15.
15. CHECK EVAP CANISTER PURGE VOLUME CONTROL SOLENOID VALVE
Refer to EC-995, "
Component Inspection" .
OK or NG
OK >> GO TO 16.
NG >> Replace EVAP canister purge volume control solenoid valve.
16. CHECK FUEL TANK TEMPERATURE SENSOR
Refer to EC-936, "
Component Inspection" .
OK or NG
OK >> GO TO 17.
NG >> Replace fuel level sensor unit.Vacuum should exist.
PBIB0828E