2007 INFINITI M35 fuel system

EC-744
[VK45DE]
EVAPORATIVE EMISSION SYSTEM
Revision: 2007 April2007 M35/M45
Component InspectionNBS0059S
EVAP CANISTER
Check EVAP canister as follows:
1. Block port (B).
2. Blow air into port (A) and check that it flows freely out of port (C).
3. Release blocked port (B).
4. Apply vacuum pressure to port (B) and check that vacuum pres-
sure exists at the ports (A) and (C).
5. Block port (A) and (B).
6. Apply pressure to port (C) and check that there is no leakage.
FUEL TANK VACUUM RELIEF VALVE (BUILT INTO FUEL FULLER CAP)
1. Wipe clean valve housing.
2. Check valve opening pressure and vacuum.
3. If out of specification, replace fuel filler cap as an assembly.
CAUTION:
Use only a genuine fuel filler cap as a replacement. If an incor-
rect fuel filler cap is used, the MIL may come on.
EVAP CANISTER PURGE VOLUME CONTROL SOLENOID VALVE
Refer to EC-1121 .
FUEL TANK TEMPERATURE SENSOR
Refer to EC-1053 .
EVAP CANISTER VENT CONTROL VALVE
Refer to EC-1128 .
EVAP CONTROL SYSTEM PRESSURE SENSOR
Refer to EC-1144 .
PBIB2728E
SEF445Y
Pressure:
15.3 - 20.0 kPa (0.156 - 0.204 kg/cm2 , 2.22
- 2.90 psi)
Va c u u m :
−6.0 to −3.3 kPa (−0.061 to −0.034 kg/cm
2 ,
−0.87 to −0.48 psi)
SEF943S

EVAPORATIVE EMISSION SYSTEM
EC-745
[VK45DE]
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Revision: 2007 April2007 M35/M45
EVAP SERVICE PORT
Positive pressure is delivered to the EVAP system through the EVAP
service port. If fuel vapor leakage in the EVAP system occurs, use a
leak detector to locate the leak.
Removal and InstallationNBS0059T
EVAP CANISTER
Tighten EVAP canister as shown in the figure.
EVAP CANISTER VENT CONTROL VALVE
1. Turn EVAP canister vent control valve counterclockwise.

Lock (A)

Unlock (B)
2. Remove the EVAP canister vent control valve.
Always replace O-ring with a new one.
How to Detect Fuel Vapor LeakageNBS0059U
CAUTION:

Do not use compressed air or a high pressure pump.

Do not exceed 4.12 kPa (0.042 kg/cm2 , 0.6 psi) of pressure in EVAP system.
NOTE:

Do not start engine.
SEF462UA
1. EVAP control system pressure sensor 2. O-ring 3. EVAP canister
4. O-ring 5. EVAP canister vent control valve
PBIB2729E
PBIB2730E

EC-748
[VK45DE]
ON BOARD REFUELING VAPOR RECOVERY (ORVR)
Revision: 2007 April2007 M35/M45
ON BOARD REFUELING VAPOR RECOVERY (ORVR)PFP:00032
System DescriptionNBS0059V
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: FLAMMABLE” 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 EC-790, "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

ON BOARD REFUELING VAPOR RECOVERY (ORVR)
EC-749
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Revision: 2007 April2007 M35/M45
Diagnostic ProcedureNBS0059W
SYMPTOM: FUEL ODOR FROM EVAP CANISTER IS STRONG.
1. CHECK EVAP CANISTER
1. Remove EVAP canister with EVAP canister vent control valve and EVAP control system pressure sensor
attached.
2. Weigh the EVAP canister with EVAP canister vent control valve and EVAP control system pressure sensor
attached.
The weight should be less than 2.0 kg (4.4 lb).
OK or NG
OK >> GO TO 2.
NG >> GO TO 3.
2. CHECK IF EVAP CANISTER SATURATED WITH WATER
Does water drain from the EVAP canister (1)?

EVAP canister vent control valve (2)
Ye s o r N o
Ye s > > G O T O 3 .
No >> GO TO 5.
3. REPLACE EVAP CANISTER
Replace EVAP canister with a new one.
>> GO TO 4.
4. DETECT MALFUNCTIONING PART
Check the EVAP hose between EVAP canister and vehicle frame for clogging or poor connection.
>> Repair or replace EVAP hose.
5. CHECK REFUELING EVAP VAPOR CUT VALVE
Refer to EC-751, "
Component Inspection" .
OK or NG
OK >>INSPECTION END
NG >> Replace refueling EVAP vapor cut valve with fuel tank.
PBIB2731E

EC-750
[VK45DE]
ON BOARD REFUELING VAPOR RECOVERY (ORVR)
Revision: 2007 April2007 M35/M45
SYMPTOM: CANNOT REFUEL/FUEL ODOR FROM THE FUEL FILLER OPENING IS STRONG
WHILE REFUELING.
1. CHECK EVAP CANISTER
1. Remove EVAP canister with EVAP canister vent control valve and EVAP control system pressure sensor
attached.
2. Weigh the EVAP canister with EVAP canister vent control valve and EVAP control system pressure sensor
attached.
The weight should be less than 2.0 kg (4.4 lb).
OK or NG
OK >> GO TO 2.
NG >> GO TO 3.
2. CHECK IF EVAP CANISTER SATURATED WITH WATER
Does water drain from the EVAP canister (1)?

EVAP canister vent control valve (2)
Ye s o r N o
Yes >> GO TO 3.
No >> GO TO 5.
3. REPLACE EVAP CANISTER
Replace EVAP canister with a new one.
>> GO TO 4.
4. DETECT MALFUNCTIONING PART
Check the EVAP hose between EVAP canister and vehicle frame for clogging or poor connection.
>> Repair or replace EVAP hose.
5. CHECK VENT HOSES AND VENT TUBES
Check hoses and tubes between EVAP canister and refueling control valve for clogging, kink, looseness and
improper connection.
OK or NG
OK >> GO TO 6.
NG >> Repair or replace hoses and tubes.
6. CHECK FILLER NECK TUBE
Check recirculation line for clogging, dents and cracks.
OK or NG
OK >> GO TO 7.
NG >> Replace filler neck tube.
PBIB2731E

ON BOARD DIAGNOSTIC (OBD) SYSTEM
EC-757
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Revision: 2007 April2007 M35/M45
Therefore, when electrical controlled throttle and part of ECM related diagnoses are continuously detected as
NG for 5 trips, ECM warns the driver that engine control system malfunctions and MIL circuit is open by means
of operating fail-safe function.
The fail-safe function also operates when above diagnoses except MIL circuit are detected and demands the
driver to repair the malfunction.
Emission-Related Diagnostic InformationNBS005A3
EMISSION-RELATED DIAGNOSTIC INFORMATION ITEMS
×:Applicable —: Not applicable Engine operating condition in fail-safe mode Engine speed will not rise more than 2,500 rpm due to the fuel cut
Items
(CONSULT-II screen terms)DTC*
1
SRT codeTest value/
Test limit
(GST only)Trip MILReference
page CONSULT-II
GST*
2ECM*3
CAN COMM CIRCUIT U1000
1000*4—— 1×EC-865
CAN COMM CIRCUIT U1001
1001*4— — 1 or 2 —EC-865
CONTROL UNIT(CAN) U1010 1010 — — 1×EC-868
NO DTC IS DETECTED.
FURTHER TESTING
MAY BE REQUIRED.P0000 0000———
Flashing*8—
INT/V TIM CONT-B1 P0011 0011 — — 2×EC-870
INT/V TIM CONT-B2 P0021 0021 — — 2×EC-870
A/F SEN1 HTR (B1) P0031 0031 —×2×EC-883
A/F SEN1 HTR (B1) P0032 0032 —×2×EC-883
HO2S2 HTR (B1) P0037 0037 —×2×EC-890
HO2S2 HTR (B1) P0038 0038 —×2×EC-890
A/F SEN1 HTR (B2) P0051 0051 —×2×EC-883
A/F SEN1 HTR (B2) P0052 0052 —×2×EC-883
HO2S2 HTR (B2) P0057 0057 —×2×EC-890
HO2S2 HTR (B2) P0058 0058 —×2×EC-890
INT/V TIM V/CIR-B1 P0075 0075 — — 2×EC-899
INT/V TIM V/CIR-B2 P0081 0081 — — 2×EC-899
MAF SEN/CIRCUIT P0101 0101 — — 2×EC-906
MAF SEN/CIRCUIT P0102 0102 — — 1×EC-915
MAF SEN/CIRCUIT P0103 0103 — — 1×EC-915
IAT SEN/CIRCUIT P0112 0112 — — 2×EC-922
IAT SEN/CIRCUIT P0113 0113 — — 2×EC-922
ECT SEN/CIRC P0117 0117 — — 1×EC-926
ECT SEN/CIRC P0118 0118 — — 1×EC-926
TP SEN 2/CIRC P0122 0122 — — 1×EC-932
TP SEN 2/CIRC P0123 0123 — — 1×EC-932
ECT SENSOR P0125 0125 — — 2×EC-939
IAT SENSOR P0127 0127 — — 2×EC-942
THERMSTAT FNCTN P0128 0128 — — 2×EC-945
A/F SENSOR1 (B1) P0130 0130 —×2×EC-947
A/F SENSOR1 (B1) P0131 0131 —×2×EC-957
A/F SENSOR1 (B1) P0132 0132 —×2×EC-966
A/F SENSOR1 (B1) P0133 0133××2×EC-975
HO2S2 (B1) P0137 0137××2×EC-987

EC-758
[VK45DE]
ON BOARD DIAGNOSTIC (OBD) SYSTEM
Revision: 2007 April2007 M35/M45
HO2S2 (B1) P0138 0138××2×EC-998
HO2S2 (B1) P0139 0139××2×EC-1011
A/F SENSOR1 (B2) P0150 0150 —×2×EC-947
A/F SENSOR1 (B2) P0151 0151 —×2×EC-957
A/F SENSOR1 (B2) P0152 0152 —×2×EC-966
A/F SENSOR1 (B2) P0153 0153××2×EC-975
HO2S2 (B2) P0157 0157××2×EC-987
HO2S2 (B2) P0158 0158××2×EC-998
HO2S2 (B2) P0159 0159××2×EC-1011
FUEL SYS-LEAN-B1 P0171 0171 — — 2×EC-1022
FUEL SYS-RICH-B1 P0172 0172 — — 2×EC-1033
FUEL SYS-LEAN-B2 P0174 0174 — — 2×EC-1022
FUEL SYS-RICH-B2 P0175 0175 — — 2×EC-1033
FTT SENSOR P0181 0181 — — 2×EC-1043
FTT SEN/CIRCUIT P0182 0182 — — 2×EC-1049
FTT SEN/CIRCUIT P0183 0183 — — 2×EC-1049
TP SEN 1/CIRC P0222 0222 — — 1×EC-1054
TP SEN 1/CIRC P0223 0223 — — 1×EC-1054
MULTI CYL MISFIRE P0300 0300 — — 2×EC-1061
CYL 1 MISFIRE P0301 0301 — — 2×EC-1061
CYL 2 MISFIRE P0302 0302 — — 2×EC-1061
CYL 3 MISFIRE P0303 0303 — — 2×EC-1061
CYL 4 MISFIRE P0304 0304 — — 2×EC-1061
CYL 5 MISFIRE P0305 0305 — — 2×EC-1061
CYL 6 MISFIRE P0306 0306 — — 2×EC-1061
CYL 7 MISFIRE P0307 0307 — — 2×EC-1061
CYL 8 MISFIRE P0308 0308 — — 2×EC-1061
KNOCK SEN/CIRC-B1 P0327 0327 — — 2 —EC-1070
KNOCK SEN/CIRC-B1 P0328 0328 — — 2 —EC-1070
KNOCK SEN/CIRC-B2 P0332 0332 — — 2 —EC-1070
KNOCK SEN/CIRC-B2 P0333 0333 — — 2 —EC-1070
CKP SEN/CIRCUIT P0335 0335 — — 2×EC-1075
CMP SEN/CIRC-B1 P0340 0340 — — 2×EC-1082
TW CATALYST SYS-B1 P0420 0420××2×EC-1089
TW CATALYST SYS-B2 P0430 0430××2×EC-1089
EVAP PURG FLOW/MON P0441 0441××2×EC-1095
EVAP SMALL LEAK P0442 0442××2×EC-1100
PURG VOLUME CONT/V P0443 0443 — — 2×EC-1108
PURG VOLUME CONT/V P0444 0444 — — 2×E C - 111 6
PURG VOLUME CONT/V P0445 0445 — — 2×E C - 111 6
VENT CONTROL VALVE P0447 0447 — — 2×EC-1123
VENT CONTROL VALVE P0448 0448 — — 2×EC-1130
Items
(CONSULT-II screen terms)DTC*
1
SRT codeTest value/
Te s t l i m i t
(GST only)Trip MILReference
page CONSULT-II
GST*
2ECM*3

ON BOARD DIAGNOSTIC (OBD) SYSTEM
EC-759
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Revision: 2007 April2007 M35/M45EVAP SYS PRES SEN P0451 0451 — — 2×EC-1136
EVAP SYS PRES SEN P0452 0452 — — 2×EC-1139
EVAP SYS PRES SEN P0453 0453 — — 2×EC-1145
EVAP GROSS LEAK P0455 0455 — — 2×EC-1153
EVAP VERY SML LEAK P0456 0456
×*7×2×EC-1160
FUEL LEV SEN SLOSH P0460 0460 — — 2×EC-1169
FUEL LEVEL SENSOR P0461 0461 — — 2×EC-1171
FUEL LEVL SEN/CIRC P0462 0462 — — 2×EC-1173
FUEL LEVL SEN/CIRC P0463 0463 — — 2×EC-1173
VEH SPEED SEN/CIRC*5P0500 0500 — — 2×EC-1175
ISC SYSTEM P0506 0506 — — 2×EC-1177
ISC SYSTEM P0507 0507 — — 2×EC-1179
PW ST P SEN/CIRC P0550 0550 — — 2 —EC-1181
ECM BACK UP/CIRCUIT P0603 0603 — — 2×EC-1186
ECM P0605 0605 — — 1 or 2× or —EC-1190
SENSOR POWER/CIRC P0643 0643 — — 1×EC-1193
TCM P0700 0700 — — 1×AT- 11 2
PNP SW/CIRC P0705 0705 — — 2×AT- 11 3
ATF TEMP SEN/CIRC P0710 0710 — — 2×AT-135
TURBINE SENSOR P0717 0717 — — 2×AT- 11 7
VEH SPD SEN/CIR AT*5P0720 0720 — — 2×AT- 11 9
TCC SOLENOID/CIRC P0740 0740 — — 2×AT-126
A/T TCC S/V FNCTN P0744 0744 — — 2×AT-128
L/PRESS SOL/CIRC P0745 0745 — — 2×AT-130
P-N POS SW/CIRCUIT P0850 0850 — — 2×EC-1198
INTK TIM S/CIRC-B1 P1140 1140 — — 2×EC-1203
INTK TIM S/CIRC-B2 P1145 1145 — — 2×EC-1203
CLOSED LOOP-B1 P1148 1148 — — 1×EC-1211
CLOSED LOOP-B2 P1168 1168 — — 1×EC-1211
TCS C/U FUNCTN P1211 1211 — — 2 —EC-1212
TCS/CIRC P1212 1212 — — 2 —EC-1213
ENG OVER TEMP P1217 1217 — — 1×EC-1214
FPCM/CIRCUIT P1220 1220 — — 2×EC-1225
CTP LEARNING P1225 1225 — — 2 —EC-1233
CTP LEARNING P1226 1226 — — 2 —EC-1235
BAT CURRENT SENSOR P1550 1550 — — 2 —EC-1237
BAT CURRENT SENSOR P1551 1551 — — 2 —EC-1244
BAT CURRENT SENSOR P1552 1552 — — 2 —EC-1244
BAT CURRENT SENSOR P1553 1553 — — 2 —EC-1251
BAT CURRENT SENSOR P1554 1554 — — 2 —EC-1258
Items
(CONSULT-II screen terms)DTC*
1
SRT codeTest value/
Test limit
(GST only)Trip MILReference
page CONSULT-II
GST*
2ECM*3