Diagnosis Procedure

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

   Is the inspection result normal? 

   YES: GO TO 2.

   NO: Replace with genuine NISSAN fuel filler cap. Refer to "EXPLODED VIEW ".

   Fig 1: Identifying Fuel Filler Cap

   Courtesy of NISSAN NORTH AMERICA, INC.

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

Is the inspection result normal? 

YES: GO TO 3.

NO: Open fuel filler cap, then clean cap and fuel filler neck threads using air blower. Then retighten until reteaching sound is heard.

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

Is the inspection result normal? 

YES: GO TO  5.

NO: GO TO 4.

Refer to "COMPONENT INSPECTION (FUEL FILLER CAP) ".

Is the inspection result normal? 

YES: GO TO 5.

NO: Replace fuel filler cap with a genuine one. Refer to "EXPLODED VIEW ".

Refer to "EXCEPT FOR MEXICO: INSPECTION ".

Is there any leak in EVAP line? 

YES: Repair or replace.

NO: GO TO 6.

Check the following.

• EVAP canister vent control valve is installed properly.

  Refer to "EXCEPT FOR MEXICO: EXPLODED VIEW ".

• EVAP canister vent control valve.

  Refer to "COMPONENT INSPECTION (EVAP CANISTER VENT CONTROL VALVE) ".

  Is the inspection result normal? 

  YES: GO TO 7.

  NO: Repair or replace EVAP canister vent control valve and O-ring. Refer to "EXCEPT FOR MEXICO: EXPLODED VIEW ".

1. Remove EVAP canister (1) with EVAP canister vent control valve (2) and EVAP control system pressure sensor attached.
2. Check if water will drain from the EVAP canister.

   Does water drain from EVAP canister? 

   YES: GO TO 8.

   NO-1: With CONSULT: GO TO  10.

   NO-2: Without CONSULT: GO TO  11.

   Fig 2: Checking EVAP Canister For Water

   Courtesy of NISSAN NORTH AMERICA, INC.

Weigh the EVAP canister assembly with the EVAP canister vent control valve and EVAP control system pressure sensor attached. Refer to "EXCEPT FOR MEXICO: EXPLODED VIEW ".

The weight should be less than 2.1 kg (4.6 lb). 

Is the inspection result normal? 

YES-1: With CONSULT: GO TO  10.

YES-2: Without CONSULT: GO TO  11.

NO: GO TO 9.

Check the following.

• EVAP canister for damage
• EVAP hose between EVAP canister and vehicle frame for clogging or poor connection

  : Repair hose or replace EVAP canister. Refer to "EXCEPT FOR MEXICO: EXPLODED VIEW ".

WITH CONSULT

1. Disconnect vacuum hose to EVAP canister purge volume control solenoid valve at EVAP service port.
2. Start engine and let it idle.
3. Select "PURG VOL CONT/V" in "ACTIVE TEST" mode.
4. Touch "Qu" on CONSULT screen to increase "PURG VOL CONT/V" opening to 100%.
5. Check vacuum hose for vacuum.

   Vacuum should exist. 

   Is the inspection result normal? 

   YES: GO TO  13.

   NO: GO TO  12.

WITHOUT CONSULT

1. Start engine and warm it up to normal operating temperature.
2. Stop engine.
3. Disconnect vacuum hose to EVAP canister purge volume control solenoid valve at EVAP service port.
4. Start engine and let it idle for at least 80 seconds.
5. Check vacuum hose for vacuum when revving engine up to 2, 000 rpm.

   Vacuum should exist. 

   Is the inspection result normal? 

   YES: GO TO  13.

   NO: GO TO 12.

Check vacuum hoses for clogging or disconnection. Refer to "EXCEPT FOR MEXICO: HYDRAULIC LAYOUT ".

Is the inspection result normal? 

YES: GO TO 13.

NO: Repair or reconnect the hose.

Refer to "COMPONENT INSPECTION (EVAP CANISTER PURGE VOLUME CONTROL SOLENOID VALVE) ".

Is the inspection result normal? 

YES: GO TO 14.

NO: Replace EVAP canister purge volume control solenoid valve. Refer to "ENGINE CONTROL SYSTEM: COMPONENT PARTS LOCATION ".

Refer to "COMPONENT INSPECTION (FUEL TANK TEMPERATURE SENSOR) ".

Is the inspection result normal? 

YES: GO TO 15.

NO: Replace fuel level sensor unit. Refer to "REMOVAL AND INSTALLATION ".

Refer to "COMPONENT INSPECTION (EVAP CONTROL SYSTEM PRESSURE SENSOR) ".

Is the inspection result normal? 

YES: GO TO 16.

NO: Replace EVAP control system pressure sensor. Refer to "EXCEPT FOR MEXICO: EXPLODED VIEW ".

Check EVAP purge line (pipe, rubber tube, fuel tank and EVAP canister) for cracks or improper connection. Refer to "EXCEPT FOR MEXICO: HYDRAULIC LAYOUT ".

Is the inspection result normal? 

YES: GO TO 17.

NO: Repair or reconnect the hose.

Clean EVAP purge line (pipe and rubber tube) using air blower.

: GO TO 18.

Check EVAP/ORVR line between EVAP canister and fuel tank for clogging, kink, looseness and improper connection. For location, refer to "EXCEPT FOR MEXICO: HYDRAULIC LAYOUT ".

Is the inspection result normal? 

YES: GO TO 19.

NO: Repair or replace hoses and tubes.

Check recirculation line between fuel filler tube and fuel tank for clogging, kink, cracks, looseness and improper connection.

Is the inspection result normal? 

YES: GO TO 20.

NO: Repair or replace hose, tube or fuel filler tube. Refer to "EXPLODED VIEW ".

Refer to "COMPONENT INSPECTION (EVAP VAPOR CUT VALVE) ".

Is the inspection result normal? 

YES: GO TO 21.

NO: Replace refueling EVAP vapor cut valve with fuel tank. Refer to "EXCEPT FOR MEXICO: EXPLODED VIEW ".

Refer to "COMPONENT INSPECTION ".

Is the inspection result normal? 

YES: GO TO 22.

NO: Replace fuel level sensor unit. Refer to "REMOVAL AND INSTALLATION ".

Refer to "INTERMITTENT INCIDENT ".

: INSPECTION END