Diagnostic Procedure

1. Turn ignition switch OFF.
2. Check for genuine NISSAN fuel filler cap design. See Figure

   OK or NG 

1. OK: GO TO 2.
2. NG: Replace with genuine NISSAN fuel filler cap.

Check that the cap is tightened properly by rotating the cap clockwise.

OK or NG 

1. OK: GO TO 3.
2. NG:
   1. Open fuel filler cap, then clean cap and fuel filler neck threads using air blower.
   2. Retighten until ratcheting sound is heard.

Check for air releasing sound while opening the fuel filler cap.

OK or NG 

1. OK: GO TO  5 .
2. NG: GO TO 4.

1. Wipe clean valve housing.
2. Check valve opening pressure and vacuum. See Figure and Figure .

   Pressure: 

   15.3 - 20.0 kPa (0.156 - 0.204 kg/cm ² , 2.22 - 2.90 psi  )

   Vacuum: 

   -6.0 to -3.3 kPa (-0.061 to -0.034 kg/cm ² , -0.87 to -0.48 psi  )

   CAUTION: Use only a genuine fuel filler cap as a replacement. If an incorrect fuel filler cap is used, the MIL may come on.

   OK or NG 

1. OK: GO TO 5.
2. NG: Replace fuel filler cap with a genuine one.

To locate the EVAP leak, install EVAP service port adapter and pressure pump to EVAP service port securely. See Figure and Figure .

1. Models with CONSULT-II: GO TO 6.
2. Models without CONSULT-II: go to  7 .

With CONSULT-II 

1. Turn ignition switch ON.
2. Select EVAP SYSTEM CLOSE of WORK SUPPORT mode with CONSULT-II.
3. Touch START and apply pressure into the EVAP line until the pressure indicator reaches the middle of the bar graph.
   NOTE:

   • Never use compressed air or a high pressure pump.
   • Do not exceed 4.12 kPa (0.042 kg/cm² , 0.6 psi) of pressure in the system.