Infiniti FX35, FX50 (S51). Manual - part 924

EVAP LEAK CHECK

EC-1237

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EVAP LEAK CHECK

Inspection

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CAUTION:

• Do not use compressed air or a high pressure pump.
• Do not exceed 4.12 kPa (0.042 kg/cm

2

, 0.6 psi) of pressure in EVAP system.

NOTE:
• Do not start engine.
• Improper installation of EVAP service port adapter (commercial service tool) to the EVAP service port may

cause a leak.

 WITH CONSULT-III

1.

To locate the EVAP leak, install EVAP service port adapter (com-
mercial service tool) and pressure pump to EVAP service port.

2.

Turn ignition switch ON.

3.

Select the “EVAP SYSTEM CLOSE” of “WORK SUPPORT”
mode with CONSULT-III.

4.

Touch “START”. A bar graph (Pressure indicating display) will
appear on the screen.

5.

Apply positive pressure to the EVAP system until the pressure
indicator reaches the middle of the bar graph.

6.

Remove EVAP service port adapter (commercial service tool)
and hose with pressure pump.

7.

Locate the leak using a leak detector (commercial service tool).
Refer to 

EC-653, "System Diagram"

.

 WITHOUT CONSULT-III

1.

To locate the EVAP leak, install EVAP service port adapter (com-
mercial service tool) and pressure pump to EVAP service port.

2.

Apply battery voltage between the terminals of EVAP canister
vent control valve to make a closed EVAP system.

3.

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).

4.

Remove EVAP service port adapter (commercial service tool)
and hose with pressure pump.

SEF462UA

SEF200U

SEF462UA

EC-1238

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EVAP LEAK CHECK

5.

Locate the leak using a leak detector (commercial service tool).
Refer to 

EC-653, "System Diagram"

.

SEF200U

EVAP CANISTER

EC-1239

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REMOVAL AND INSTALLATION

EVAP CANISTER

Exploded View

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Removal and Installation

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REMOVAL

1.

Lift up the vehicle.

2.

Remove EVAP canister fixing bolt.

3.

Remove EVAP canister.

NOTE:
The EVAP canister vent control valve and EVAP control system pressure sensor can be removed without
removing the EVAP canister.

INSTALLATION

Install in the reverse order of removal.
NOTE:
Tighten EVAP canister fixing bolt to the specified torque.

DISASSEMBLY

1.

Turn EVAP canister vent control valve counterclockwise.
• Lock (A)
• Unlock (B)

2.

Remove the EVAP canister vent control valve.

1.

EVAP control system pressure sen-
sor

2.

O-ring

3.

EVAP canister

4.

O-ring

5.

EVAP canister vent control valve

Refer to 

GI-3, "Contents"

 for symbols not described on the above.

JMBIA0049GB

PBIB2730E

EC-1240

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EVAP CANISTER

ASSEMBLY

Assemble in the reverse order of disassembly.

CAUTION:

Always replace O-ring with a new one.

Inspection

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Check EVAP canister as per the following:
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.

PBIB2728E