Vacuum Diagrams: Introduction

NOTE: For vacuum diagrams information on I35, refer to Maxima in Nissan VACUUM DIAGRAMS article. For vacuum diagrams information on QX4, refer to Pathfinder in Nissan VACUUM DIAGRAMS article.

This article contains schematics of vacuum hose routing. Use these vacuum diagrams during the visual inspection portion of BASIC DIAGNOSTIC PROCEDURES article. This will assist in identifying improperly routed vacuum hoses, which cause driveability and/or computer-indicated malfunctions.

NOTE: Do not use soapy water or any type of solvent while installing vacuum or purge hoses.

Fig 1: EVAP System Diagram

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Courtesy of NISSAN MOTOR CO., U.S.A.

Fig 2: On Board Refueling Vapor Recovery System Diagram

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Courtesy of NISSAN MOTOR CO., U.S.A.

Fig 3: Engine Control System Vacuum Diagram (G20)

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Courtesy of NISSAN MOTOR CO., U.S.A.

Fig 4: Identifying Engine Control System Vacuum Hose Routing (G20)

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Courtesy of NISSAN MOTOR CO., U.S.A.

Fig 5: Identifying EVAP System Hose Routing (G20 - 1 Of 2)

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Courtesy of NISSAN MOTOR CO., U.S.A.

Fig 6: Identifying EVAP System Hose Routing (G20 - 2 Of 2)

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Courtesy of NISSAN MOTOR CO., U.S.A.

Fig 7: Identifying On Board Refueling Vapor Recovery Hose Routing (G20)

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Courtesy of NISSAN MOTOR CO., U.S.A.

Fig 8: Engine Control System Vacuum Diagram (Q45)

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Courtesy of NISSAN MOTOR CO., U.S.A.

Fig 9: Identifying Engine Control System Vacuum Hose Routing (Q45)

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Courtesy of NISSAN MOTOR CO., U.S.A.

Fig 10: Identifying EVAP System Hose Routing (Q45 - 1 Of 2)

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Courtesy of NISSAN MOTOR CO., U.S.A.

Fig 11: Identifying EVAP System Hose Routing (Q45 - 2 Of 2)

G00103784

Courtesy of NISSAN MOTOR CO., U.S.A.