leak INFINITI FX35 2005 Manual Online

EC-44
[VQ35DE]
EVAPORATIVE EMISSION SYSTEM
Revision: 2005 July 2005 FX
WITH CONSULT-II
1. Attach the EVAP service port adapter securely to the EVAP service port.
2. Also attach the pressure pump and hose to the EVAP service port adapter.
3. Turn ignition switch ON.
4. Select the “EVAP SYSTEM CLOSE” of “WORK SUPPORT MODE” with CONSULT-II.
5. Touch “START”. A bar graph (Pressure indicating display) will appear on the screen.
6. Apply positive pressure to the EVAP system until the pressure indicator reaches the middle of the bar graph.
7. Remove EVAP service port adapter and hose with pressure pump.
8. Locate the leak using a leak detector. Refer to EC-40, "
EVAPO-
RATIVE EMISSION LINE DRAWING" .
WITHOUT CONSULT-II
1. Attach the EVAP service port adapter securely to the EVAP ser-
vice port.
2. Also attach the pressure pump with pressure gauge to the EVAP service port adapter.
PEF838U
PEF917U
SEF200U
SEF462UA

EVAPORATIVE EMISSION SYSTEM EC-45
[VQ35DE]
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Revision: 2005 July 2005 FX
3. Apply battery voltage between the terminals of EVAP canister vent control valve to make a closed EVAP
system.
4. To locate the leak, deliver positive pressure to the EVAP system until pressure gauge points reach 1.38 to 2.76 kPa (0.014 to 0.028 kg/cm
2 , 0.2 to 0.4 psi).
5. Remove EVAP service port adapter and hose with pressure pump.
6. Locate the leak using a leak detector. Refer to EC-40, "
EVAPORATIVE EMISSION LINE DRAWING" .
PBIB1611E

EC-46
[VQ35DE]
ON BOARD REFUELING VAPOR RECOVERY (ORVR)
Revision: 2005 July 2005 FX
ON BOARD REFUELING VAPOR RECOVERY (ORVR)PFP:00032
System DescriptionABS006ZB
From the beginning of refueling, the air and vapor inside the fuel tank go through refueling EVAP vapor cut
valve and EVAP/ORVR line to the EVAP canister. The vapor is absorbed by the EVAP canister and the air is
released to the atmosphere.
When the refueling has reached the full level of the fuel tank, the refueling EVAP vapor cut valve is closed and
refueling is stopped because of auto shut-off. The vapor which was absorbed by the EVAP canister is purged
during driving.
WARNING:
When conducting inspections below, be sure to observe the following:

Put a “CAUTION: INFLAMMABLE” sign in workshop.

Do not smoke while servicing fuel system. Keep open flames and sparks away from work area.

Be sure to furnish the workshop with a CO2 fire extinguisher.
CAUTION:

Before removing fuel line parts, carry out the following procedures:
–Put drained fuel in an explosion-proof container and put lid on securely.
–Release fuel pressure from fuel line. Refer to Fuel Pressure Release, EC-99, "FUEL PRESSURE
RELEASE" .
–Disconnect battery ground cable.

Always replace O-ring when the fuel gauge retainer is removed.

Do not kink or twist hose and tube when they are installed.

Do not tighten hose and clamps excessively to avoid damaging hoses.

After installation, run engine and check for fuel leaks at connection.

Do not attempt to top off the fuel tank after the fuel pump nozzle shuts off automatically.
Continued refueling may cause fuel overflow, resulting in fuel spray and possibly a fire.
PBIB1068E

EC-52
[VQ35DE]
POSITIVE CRANKCASE VENTILATION
Revision: 2005 July 2005 FX
PCV VALVE VENTILATION HOSE
1. Check hoses and hose connections for leaks.
2. Disconnect all hoses and clean with compressed air. If any hose cannot be freed of obstructions, replace.
S-ET277

EC-56
[VQ35DE]
ON BOARD DIAGNOSTIC (OBD) SYSTEM
Revision: 2005 July 2005 FX
CYL 1 MISFIRE P0301 0301 — — 2 ×EC-285
CYL 2 MISFIRE P0302 0302 — — 2 ×EC-285
CYL 3 MISFIRE P0303 0303 — — 2 ×EC-285
CYL 4 MISFIRE P0304 0304 — — 2 ×EC-285
CYL 5 MISFIRE P0305 0305 — — 2 ×EC-285
CYL 6 MISFIRE P0306 0306 — — 2 ×EC-285
KNOCK SEN/CIRC-B1 P0327 0327 — — 2 — EC-295
KNOCK SEN/CIRC-B1 P0328 0328 — — 2 —EC-295
CKP SEN/CIRCUIT P0335 0335 — — 2×EC-300
CMP SEN/CIRC-B1 P0340 0340 — — 2 ×EC-307
CMP SEN/CIRC-B2 P0345 0345 — — 2 ×EC-307
TW CATALYST SYS-B1 P0420 0420 ××2×EC-316
TW CATALYST SYS-B2 P0430 0430 ××2×EC-316
EVAP PURG FLOW/MON P0441 0441 ××2×EC-322
EVAP SMALL LEAK P0442 0442 ××2×EC-327
PURG VOLUME CONT/V P0444 0444 — — 2 ×EC-336
PURG VOLUME CONT/V P0445 0445 — — 2 ×EC-336
VENT CONTROL VALVE P0447 0447 — — 2 ×EC-343
EVAP SYS PRES SEN P0451 0451 — — 2 ×EC-350
EVAP SYS PRES SEN P0452 0452 — — 2 ×EC-353
EVAP SYS PRES SEN P0453 0453 — — 2 ×EC-359
EVAP GROSS LEAK P0455 0455 — — 2 ×EC-367
EVAP VERY SML LEAK P0456 0456
× *4× 2 ×EC-375
FUEL LEV SEN SLOSH P0460 0460 — — 2 ×EC-385
FUEL LEVEL SENSOR P0461 0461 — — 2 ×EC-387
FUEL LEVL SEN/CIRC P0462 0462 — — 2 ×EC-389
FUEL LEVEL SEN/CIRC P0463 0463 — — 2 ×EC-389
VEH SPEED SEN/CIRC*6P0500 0500 — — 2 ×EC-391
ISC SYSTEM P0506 0506 — — 2 ×EC-393
ISC SYSTEM P0507 0507 — — 2 ×EC-395
PW ST P SEN/CIRC P0550 0550 — — 2 — EC-397
ECM P0605 0605 — — 1 or 2× or — EC-402
TCM P0700 0700 — — 1 ×AT- 11 3
PNP SW/CIRC P0705 0705 — — 2 ×AT- 11 4
ATF TEMP SEN/CIRC P0710 0710 — — 2 ×AT-136
VEH SPD SEN/CIR AT*6P0720 0720 — — 2 ×AT- 11 8
ENGINE SPEED SIG P0725 0725 — — 2 ×AT-123
TCC SOLENOID/CIRC P0740 0740 — — 2 ×AT-125
A/T TCC S/V FNCTN P0744 0744 — — 2 ×AT-127
L/PRESS SOL/CIRC P0745 0745 — — 2 ×AT-129
A/F SEN1 HTR (B1) P1031 1031 ××2×EC-405
A/F SEN1 HTR (B1) P1032 1032 ××2×EC-405
Items
(CONSULT-II screen terms) DTC*
1
SRT code
Test value/
Test limit
(GST only) Trip
Reference
page
CONSULT-II
GST*
2ECM*3

ON BOARD DIAGNOSTIC (OBD) SYSTEM EC-67
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Revision: 2005 July 2005 FX
Item Self-diagnostic test item DTC Test value
(GST display) Test limit Conversion
TID CID
CATALYST Three way catalyst function (Bank 1)
P0420 01H 01H Max. 1/128
P0420 02H 81H Min. 1
Three way catalyst function (Bank 2) P0430 03H 02H Max. 1/128
P0430 04H 82H Min. 1
EVAP SYSTEM EVAP control system (Small leak) P0442 05H 03H Max.
1/128mm
2
EVAP control system purge flow monitoring P0441 06H 83H Min. 20mV
EVAP control system (Very small leak) P0456 07H 03H Max. 1/128mm
2
HO2S Air fuel ratio (A/F) sensor 1 (Bank 1)
P1271 41H 8EH Min. 5 mV
P1272 42H 0EH Max. 5 mV
P1273 43H 0EH Max. 0.002
P1274 44H 8EH Min. 0.002
P1278 45H 8EH Min. 0.004
P1276 46H 0EH Max. 5 mV
P1276 47H 8EH Min. 5 mV
P1279 48H 8EH Min. 0.004
Air fuel ratio (A/F) sensor 1 (Bank 2) P1281 4CH 8FH Min. 5 mV
P1282 4DH 0FH Max. 5 mV
P1283 4EH 0FH Max. 0.002
P1284 4FH 8FH Min. 0.002
P1288 50H 8FH Min. 0.004
P1286 51H 0FH Max. 5 mV
P1286 52H 8FH Min. 5 mV
P1289 53H 8FH Min. 0.004
Heated oxygen sensor 2 (Bank 1) P0139 19H 86H Min. 10mV/500ms
P1147 1AH 86H Min. 10mV
P1146 1BH 06H Max. 10mV
P0138 1CH 06H Max. 10mV
Heated oxygen sensor 2 (Bank 2) P0159 21H 87H Min. 10mV/500ms
P1167 22H 87H Min. 10mV
P1166 23H 07H Max. 10mV
P0158 24H 07H Max. 10mV
HO2S HEATER Air fuel ratio (A/F) sensor 1 heater (Bank 1)
P1032 57H 10H Max. 5 mV
P1031 58H 90H Min. 5 mV
Air fuel ratio (A/F) sensor 1 heater (Bank 2) P1052 59H 11H Max. 5 mV
P1051 5AH 91H Min. 5 mV
Heated oxygen sensor 2 heater (Bank 1) P0038 2DH 0AH Max. 20mV
P0037 2EH 8AH Min. 20mV
Heated oxygen sensor 2 heater (Bank 2) P0058 2FH 0BH Max. 20mV
P0057 30H 8BH Min. 20mV

EC-78
[VQ35DE]
BASIC SERVICE PROCEDURE
Revision: 2005 July 2005 FX
BASIC SERVICE PROCEDUREPFP:00018
Basic InspectionABS006KR
1. INSPECTION START
1. Check service records for any recent repairs that may indicate a related malfunction, or a current need for scheduled maintenance.
2. Open engine hood and check the following:
–Harness connectors for improper connections
–Wiring harness for improper connections, pinches and cut
–Vacuum hoses for splits, kinks and improper connections
–Hoses and ducts for leaks
–Air cleaner clogging
–Gasket
3. Confirm that electrical or mechanical loads are not applied.
–Headlamp switch is OFF.
–Air conditioner switch is OFF.
–Rear window defogger switch is OFF.
–Steering wheel is in the straight-ahead position, etc.
4. Start engine and warm it up until engine coolant temperature indicator points the middle of gauge.
Ensure engine stays below 1,000 rpm.
5. Run engine at about 2,000 rpm for about 2 minutes under no- load.
6. Make sure that no DTC is displayed with CONSULT-II or GST.
OK or NG
OK >> GO TO 3.
NG >> GO TO 2.
2. REPAIR OR REPLACE
Repair or replace components as necessary according to corresponding Diagnostic Procedure.
>> GO TO 3.
SEF983U
SEF976U
SEF977U

BASIC SERVICE PROCEDURE EC-87
[VQ35DE]
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Revision: 2005 July 2005 FX
DETAILED PROCEDURE
1. INSPECTION START
1. Check service records for any recent repairs that may indicate a related malfunction, or a current need for scheduled maintenance.
2. Open engine hood and check the following:
–Harness connectors for improper connections
–Wiring harness for improper connections, pinches and cut
–Vacuum hoses for splits, kinks and improper connections
–Hoses and ducts for leaks
–Air cleaner clogging
–Gasket
3. Confirm that electrical or mechanical loads are not applied.
–Head lamp switch is OFF.
–Air conditioner switch is OFF.
–Rear window defogger switch is OFF.
–Steering wheel is in the straight-ahead position, etc.
4. Start engine and warm it up until engine coolant temperature indicator points the middle of gauge.
Ensure engine stays below 1,000 rpm.
5. Run engine at about 2,000 rpm for about 2 minutes under no- load.
6. Make sure that no DTC is displayed with CONSULT-II or GST.
OK or NG
OK >> GO TO 3.
NG >> GO TO 2.
2. REPAIR OR REPLACE
Repair or replace components as necessary according to corresponding Diagnostic Procedure.
>> GO TO 3.
SEF983U
SEF976U
SEF977U

BASIC SERVICE PROCEDURE EC-99
[VQ35DE]
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Revision: 2005 July 2005 FX13. If idle speed and ignition timing are not within the specification, Idle Air Volume Learning will not be carried
out successfully. In this case, find the cause of the incident by referring to the DIAGNOSTIC PROCE-
DURE below.
DIAGNOSTIC PROCEDURE
If idle air volume learning cannot be performed successfully, proceed as follows:
1. Check that throttle valve is fully closed.
2. Check PCV valve operation.
3. Check that downstream of throttle valve is free from air leakage.
4. When the above three items check out OK, engine component parts and their installation condi-
tion are questionable. Check and eliminate the cause of the incident.
It is useful to perform EC-153, "
TROUBLE DIAGNOSIS - SPECIFICATION VALUE" .
5. If any of the following conditions occur after the engine has started, eliminate the cause of the
incident and perform Idle Air Volume Learning all over again:

Engine stalls.

Erroneous idle.
Fuel Pressure CheckABS006KH
FUEL PRESSURE RELEASE
With CONSULT-II
1. Turn ignition switch ON.
2. Perform “FUEL PRESSURE RELEASE” in “WORK SUPPORT” mode with CONSULT-II.
3. Start engine.
4. After engine stalls, crank it 2 or 3 times to release all fuel pres- sure.
5. Turn ignition switch OFF.
Without CONSULT-II
1. Remove fuel pump fuse located in IPDM E/R.
2. Start engine.
3. After engine stalls, crank it 2 or 3 times to release all fuel pres- sure.
4. Turn ignition switch OFF.
5. Reinstall fuel pump fuse after servicing fuel system.
FUEL PRESSURE CHECK
CAUTION:
Before disconnecting fuel line, release fuel pressure from fuel line to eliminate danger.
NOTE:

Prepare pans or saucers under the disconnected fuel line because the fuel may spill out. The fuel
pressure cannot be completely released because S50 models do not have fuel return system.

Use Fuel Pressure Gauge Kit (J-44321) to check fuel pressure.
ITEM SPECIFICATION
Idle speed 650 ± 50 rpm (in P or N position)
Ignition timing 15 ± 5 ° BTDC (in P or N position)
SEF214Y
PBIB1603E

EC-100
[VQ35DE]
BASIC SERVICE PROCEDURE
Revision: 2005 July 2005 FX
1. Release fuel pressure to zero. Refer to EC-99, "FUEL PRESSURE RELEASE" .
2. Install the inline fuel quick disconnected fitting between fuel damper and injector tube.
3. Connect the fuel pressure test gauge (quick connector adapter hose) to the inline fuel quick disconnected fitting.
4. Turn ignition switch ON and check for fuel leakage.
5. Start engine and check for fuel leakage.
6. Read the indication of fuel pressure gauge.
7. If result is unsatisfactory, go to next step.
8. Check the following.

Fuel hoses and fuel tubes for clogging

Fuel filter for clogging

Fuel pump

Fuel pressure regulator for clogging
If OK, replace fuel pressure regulator.
If NG, repair or replace. At idling:
Approximately 350 kPa (3.57 kg/cm
2 , 51 psi)
PBIB1571E