Mike's Workshop Manuals: Service manuals for every vehicle
Home >> Infiniti >> 1999 >> Q45 Base >> Repair and Diagnosis >> External Pages >> Different car >> Section 6 (Engine Controls - System & Component Testing) >> Emission Systems & Sub-Systems >> On Board Refueling Vapor Recovery (ORVR) System >> Refueling Control Valve Test

Refueling Control Valve Test

WARNING: This page is about a different car, the 2000 Infiniti Q45 and 2000 Infiniti G20. However, it is still accessible from the selected car via links, so may be relevant.
  1. Remove fuel filler cap. Disconnect signal line hose from fuel filler tube. Disconnect refueling EVAP vapor line hose from tube. See Fig 1 or Fig 2 .
  2. Leave both hoses connected to fuel tank. Blow air into refueling EVAP vapor line hose. Air should flow freely into fuel tank. Blow air into signal line hose. Air should not flow. Using a hand pressure pump with a "T", apply 2.9 psi (20.0 kPa) of pressure to both hoses. See Fig 3. Air should not leak. If operation is as specified, refueling control valve is okay. If operation is not as specified, replace fuel tank.
Fig 1: Identifying EVAP & ORVR System Hoses At Fuel Tank (G20)
G00010125Courtesy of NISSAN MOTOR CO., U.S.A.
Fig 2: Identifying EVAP & ORVR System Hoses At Fuel Tank (Q45)
G00010126Courtesy of NISSAN MOTOR CO., U.S.A.
Fig 3: Testing Refueling Control Valve & Refueling EVAP Vapor Cut Valve
G00010130Courtesy of NISSAN MOTOR CO., U.S.A.
scientia non olet · About Mike's Workshop Manuals