Nissan Altima L32. Manual - part 615

EVAP LEAK CHECK

EC-1581

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EVAP LEAK CHECK

Inspection

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CAUTION:

• Never use compressed air or a high pressure pump.
• Never 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 leakage.

 WITH CONSULT-III

1. To locate the EVAP leakage, install EVAP service port adapter

(commercial 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 leakage using a leakage detector (commercial ser-

vice tool). Refer to 

EC-1116, "System Diagram"

.

 WITHOUT CONSULT-III

1. To locate the EVAP leakage, install EVAP service port adapter

(commercial 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 leakage, deliver positive pressure to the EVAP sys-

tem 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

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EVAP LEAK CHECK

5. Locate the leakage using a leakage detector (commercial ser-

vice tool). Refer to 

EC-1116, "System Diagram"

.

SEF200U

EVAP CANISTER

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ON-VEHICLE REPAIR

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 canister 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.

2. Remove the EVAP canister vent control valve.

ASSEMBLY

Assemble in the reverse order of disassembly.

CAUTION:

Always replace O-ring with a new one.

1.

EVAP control system pressure sensor 2.

EVAP canister

3.

O-ring

4.

EVAP canister vent control valve

5.

O-ring

AWBIA0671ZZ

A

:  Lock

B

:  Unlock

PBIB3091E

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EVAP CANISTER

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.

PBIB1212E