Nissan Altima 2007-2012 Service Manual: Evap leak check

Inspection

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.

• Improper installation of EVAP service port adapter [commercial service tool: (J-41413-OBD)] to the EVAP service port may cause a leak.

1. To locate the EVAP leak, install EVAP service port adapter [commercial service tool: (J-41413-OBD)] 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: (J- 41413-OBD)] and hose with pressure pump.

7. Locate the leak using a leak detector [commercial service tool: (J-41416)]. Refer to EC-86, "System Diagram".

1. To locate the EVAP leak, install EVAP service port adapter [commercial service tool: (J-41413-OBD)] 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/cm2, 0.2 to 0.4 psi).

4. Remove EVAP service port adapter [commercial service tool: (J- 41413-OBD)] and hose with pressure pump.

5. Locate the leak using a leak detector [commercial service tool: (J-41416)]. Refer to EC-86, "System Diagram".

    Fuel pressure
    Inspection FUEL PRESSURE RELEASE 1. Turn ignition switch ON. 2. Perform “FUEL PRESSURE RELEASE” in “WORK SUPPORT” mode with CONSULT-III. 3. Start engine. 4. After engine stalls, ...

    On-vehicle repair
    EVAP CANISTER Exploded View Removal and Installation REMOVAL 1. Lift up the vehicle. 2. Remove EVAP canister fixing bolt. 3. Remove EVAP canister. NOTE: The EVAP canister vent contro ...

    Other materials:

    P0443 Evap canister purge volume control solenoid valve
    Description The EVAP canister purge volume control solenoid valve is used to control the flow rate of fuel vapor from the EVAP canister. The EVAP canister purge volume control solenoid valve is moved by ON/OFF pulses from the ECM. The longer the ON pulse, the greater the amount of fuel vapor th ...

    The ambient temperature display is incorrect
    Description • The displayed ambient air temperature is higher than the actual temperature. • The displayed ambient air temperature is lower than the actual temperature. Diagnosis Procedure NOTE: Check that the symptom is not applicable to the normal operating condition before starting ...

    P1564 ASCD Steering switch
    Description ASCD steering switch has variant values of electrical resistance for each button. ECM reads voltage variation of switch, and determines which button is operated. Refer to EC-603, "System Description" for the ASCD function. DTC Logic DTC DETECTION LOGIC NOTE: If DTC ...