April 5, 2026: LEMON Manuals is launched! Read the announcement.

Vacuum Diagrams: Introduction

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

Fig 1: Vacuum System Schematic (B2200 2.2L Carbureted)

G91D16678

Courtesy of MAZDA MOTORS CORP.

Fig 2: Vacuum Hose Routing Diagram (B2200 2.2L Carbureted)

G91E16687

Courtesy of MAZDA MOTORS CORP.

Fig 3: Vacuum System Schematic (B2200 2.2L PFI & B2600i 2.6L)

G91E16679

Courtesy of MAZDA MOTORS CORP.

Fig 4: Vacuum Hose Routing Diagram (B2200 2.2L PFI & B2600i 2.6L)

G91F16688

Courtesy of MAZDA MOTORS CORP.

Fig 5: Vacuum System Schematic (Miata 1.6L)

G91H16680

Courtesy of MAZDA MOTORS CORP.

Fig 6: Vacuum Hose Routing Diagram (Miata 1.6L)

G90A14811

Courtesy of MAZDA MOTORS CORP.

Fig 7: Vacuum System Schematic (MPV 2.6L)

G91I16681

Courtesy of MAZDA MOTORS CORP.

Fig 8: Vacuum Hose Routing Diagram (MPV 2.6L)

G91G16689

Courtesy of MAZDA MOTORS CORP.

Fig 9: Vacuum System Schematic (MPV 3.0L)

G91J16682

Courtesy of MAZDA MOTORS CORP.

Fig 10: Vacuum Hose Routing Diagram (MPV 3.0L)

G92E24970

Courtesy of MAZDA MOTORS CORP.

Fig 11: Vacuum System Schematic (MX-3 1.6L)

G92F24971

Courtesy of MAZDA MOTORS CORP.

Fig 12: Vacuum Hose Routing Diagram (MX-3 1.6L)

G92G24972

Courtesy of MAZDA MOTORS CORP.

Fig 13: Vacuum System Schematic (MX-3 1.8L)

G92H24973

Courtesy of MAZDA MOTORS CORP.

Fig 14: Vacuum Hose Routing Diagram (MX-3 1.8L)

G92I24974

Courtesy of MAZDA MOTORS CORP.

Fig 15: Vacuum System Schematic (MX-6 & 626 2.2L Non-Turbo)

G91A16683

Courtesy of MAZDA MOTORS CORP.

Fig 16: Vacuum Hose Routing Diagram (MX-6 & 626 2.2L Non-Turbo)

G91B17211

Courtesy of MAZDA MOTORS CORP.

Fig 17: Vacuum System Schematic (MX-6 & 626 2.2L Turbo)

G90B14812

Courtesy of MAZDA MOTORS CORP.

Fig 18: Vacuum Hose Routing Diagram (MX-6 & 626 2.2L Turbo)

G90C14813

Courtesy of MAZDA MOTORS CORP.

Fig 19: Vacuum Hose Routing Diagram (Navajo 4.0L)

G91D17213

Courtesy of FORD MOTOR CO.

Fig 20: Vacuum System Schematic (Protege 1.8L & 323 1.6L)

G90D14814

Courtesy of MAZDA MOTORS CORP.

Fig 21: Vacuum Hose Routing Diagram (Protege 1.8L & 323 1.6L)

G90E14815

Courtesy of MAZDA MOTORS CORP.

Fig 22: Vacuum System Schematic (929 3.0L)

G92J24975

Courtesy of MAZDA MOTORS CORP.

Fig 23: Vacuum Hose Routing Diagram (929 3.0L)

G92A24976

Courtesy of MAZDA MOTORS CORP.