Refueling Control Valve Test (Maxima & Sentra)
WARNING: This page does not describe the selected car, but rather 9 other vehicles, including the 2000 Nissan Xterra, 2000 Nissan Sentra, 2000 Nissan Quest, 2000 Nissan Pathfinder, and 2000 Nissan Maxima. However, it is still accessible from the selected car via links, so may be relevant.
Remove fuel filler cap. Blow air into hose "B". See Fig 1 or Fig 2 . Air should flow freely into fuel tank. Blow air into hose "A". Air should not flow. Using a hand pressure pump with a vacuum "T", apply 2.9 psi (.02 kg/cm2 ) pressure to hoses "A" and "B". Air should not escape. If operation is not as specified, replace fuel tank and control valve. If operation is as specified, test is complete.