Infiniti FX35 / FX45. Manual — part 321
EVAPORATIVE EMISSION SYSTEM
EC-45
< SERVICE INFORMATION >
[VQ35DE]
C
D
E
F
G
H
I
J
K
L
M
A
EC
N
P
O
3.
Turn ignition switch ON.
4.
Select the “EVAP SYSTEM CLOSE” of “WORK SUPPORT MODE” with CONSULT-III.
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
WITHOUT CONSULT-III
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.
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
SEF200U
SEF462UA
PBIB1611E
EC-46
< SERVICE INFORMATION >
[VQ35DE]
ON BOARD REFUELING VAPOR RECOVERY (ORVR)
ON BOARD REFUELING VAPOR RECOVERY (ORVR)
System Description
INFOID:0000000001325908
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 CO
2
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
.
- Disconnect negative battery 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.
Diagnosis Procedure
INFOID:0000000001325909
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 2.1 kg (4.6 lb).
OK or NG
OK
>> GO TO 2.
NG
>> GO TO 3.
PBIB1068E
ON BOARD REFUELING VAPOR RECOVERY (ORVR)
EC-47
< SERVICE INFORMATION >
[VQ35DE]
C
D
E
F
G
H
I
J
K
L
M
A
EC
N
P
O
2.
CHECK IF EVAP CANISTER SATURATED WITH WATER
Does water drain from the EVAP canister?
Yes or No
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 REFUELING EVAP VAPOR CUT VALVE
OK or NG
OK
>> INSPECTION END
NG
>> Replace refueling EVAP vapor cut valve with fuel tank.
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 2.1 kg (4.6 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?
Yes or No
Yes
>> GO TO 3.
No
>> GO TO 5.
3.
REPLACE EVAP CANISTER
Replace EVAP canister with a new one.
PBIB1031E
PBIB1031E
EC-48
< SERVICE INFORMATION >
[VQ35DE]
ON BOARD REFUELING VAPOR RECOVERY (ORVR)
>> 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.
7.
CHECK REFUELING EVAP VAPOR CUT VALVE
OK or NG
OK
>> GO TO 8.
NG
>> Replace refueling EVAP vapor cut valve with fuel tank.
8.
CHECK FUEL FILLER TUBE
Check filler neck tube and hose connected to the fuel tank for clogging, dents and cracks.
OK or NG
OK
>> GO TO 9.
NG
>> Replace fuel filler tube.
9.
CHECK ONE-WAY FUEL VALVE-I
Check one-way valve for clogging.
OK or NG
OK
>> GO TO 10.
NG
>> Repair or replace one-way fuel valve with fuel tank.
10.
CHECK ONE-WAY FUEL VALVE-II
1.
Make sure that fuel is drained from the tank.
2.
Remove fuel filler tube and hose.
3.
Check one-way fuel valve for operation as follows.
When a stick is inserted, the valve should open, when removing
stick it should close.
Do not drop any material into the tank.
OK or NG
OK
>> INSPECTION END
NG
>> Replace fuel filler tube or replace one-way fuel valve
with fuel tank.
Component Inspection
INFOID:0000000001325910
REFUELING EVAP VAPOR CUT VALVE
SEF665U
Нет комментариевНе стесняйтесь поделиться с нами вашим ценным мнением.
Текст