Mazda Workshop Service and Repair Manuals

Fuel Pressure: Specifications

FUEL PUMP PRESSURE ........................................................................................................................................................  64 - 85 psi (441 - 588 kPa)

FUEL SYSTEM PRESSURE (REGULATED)

W/18" - 21" Hg Vacuum To Pressure Regulator .....................................................................................................................  31 - 38 psi (216 - 265 kPa)
W/No Vacuum To Pressure Regulator ....................................................................................................................................  38 - 46 psi (265 - 314 kPa)

 
FUEL SYSTEM RESIDUAL PRESSURE ......................................................................................................................................  21 psi (147 kPa) min.