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Home >> Infiniti >> 2000 >> Q45 Base >> Repair and Diagnosis >> External Pages >> Different car >> Section 5 (Engine Controls - System & Component Testing) >> Emission Systems & Sub-Systems >> Fuel Evaporation (EVAP) Control System >> EVAP System Leak Test
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EVAP System Leak Test

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.
CAUTION: DO NOT apply more than.6 psi (.04 kg/cm2 ) of pressure to EVAP system. DO NOT use compressed air.
NOTE: DO NOT start engine.

Connect suitable pressure pump with gauge to EVAP service port. See VACUUM DIAGRAMS article for location. Using jumper wires, apply battery voltage to EVAP Canister Vent Control Valve (EVAP-CVCV) and vacuum cut valve by-pass valve. See Fig 1 through Fig 7. Apply.2-.4 psi (.01-.03 kg/cm2 ) of pressure to EVAP service port. Remove pressure pump from EVAP service port. Using Leak Detector (J41416), locate EVAP system leak.

Fig 1: Testing EVAP System For Leaks (Altima)
G99J50459Courtesy of NISSAN MOTOR CO., U.S.A.
Fig 2: Testing EVAP System For Leaks (Frontier 2.4L & Xterra 2.4L)
G99D50461Courtesy of NISSAN MOTOR CO., U.S.A.
Fig 3: Testing EVAP System For Leaks (Frontier 3.3L & Xterra 3.3L)
G00015125Courtesy of NISSAN MOTOR CO., U.S.A.
Fig 4: Testing EVAP System For Leaks (Maxima)
G00015123Courtesy of NISSAN MOTOR CO., U.S.A.
Fig 5: Testing EVAP System For Leaks (Pathfinder)
G99H50465Courtesy of NISSAN MOTOR CO., U.S.A.
Fig 6: Testing EVAP System For Leaks (Quest)
G99F50463Courtesy of NISSAN MOTOR CO., U.S.A.
Fig 7: Testing EVAP System For Leaks (Sentra)
G00015124Courtesy of NISSAN MOTOR CO., U.S.A.