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Home >> Nissan-Datsun >> 2003 >> Sentra SE-R, Automatic >> Repair and Diagnosis >> Engine Performance >> System >> Engine Controls - System & Component Testing >> Emission Systems & Sub-Systems >> On Board Refueling Vapor Recovery System >> Cannot Refuel/Strong Fuel Odor From Fuel Filler While Refueling
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Cannot Refuel/Strong Fuel Odor From Fuel Filler While Refueling

  1. Remove EVAP canister along with EVAP canister vent control valve. Weigh EVAP canister with vent valve attached. If EVAP canister weighs less than 4 lbs. (1.8 kg), go to next step. If canister weighs more than specified, go to step  3.
  2. If water drains from EVAP canister, go to next step. If no water drains from canister, go to step  6.
  3. Replace EVAP canister. After repairs, go to next step.
  4. Check water separator. See WATER SEPARATOR . If water separator tests okay, go to next step. If water separator does not test okay, replace water separator.
  5. Check vacuum hose between EVAP canister and water separator for clogging or poor connections. If problem is found, replace vacuum hose. After repair, retest system.
  6. Check vent hoses and tubes between EVAP canister and refueling control valve for clogging, kinks, looseness or improper connections. If no problem is found, go to next step. If problem is found, repair or replace hoses or tubes as necessary.
  7. Check signal and recirculation lines for clogging, dents or cracks. If no problem is found, go to next step. If problem is found, repair as necessary.
  8. Check refuel control valve. See REFUELING CONTROL VALVE . If no problem is found, go to next step. If problem is found, repair as necessary.
    9. NOTE: Refueling EVAP vapor cut valve can only be replaced by replacing fuel tank.
  9. Check refueling EVAP vapor cut valve. See REFUELING EVAP VAPOR CUT VALVE . If no problem is found, go to next step. If problem is found, replace refueling EVAP vapor cut valve.
  10. Check fuel filler tube and hose between fuel tank and gas cap for clogging, dents or cracks. If no problem is found, go to next step. If problem is found, replace refueling EVAP vapor cut valve.
  11. Drain fuel from tank. Remove fuel filler tube and hose. Using a small wooden dowel, attempt to open one-way check valve. Check valve should open and close when pushed with dowel. Check one-way fuel check valve for sticking or clogging. If no problem is found, testing is complete. If problem is found, replace fuel tank along with check valve.
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