Mazda Protege DX L4-20L DOHC Workshop Service and Repair Manuals

Fuel Pressure: Specifications

Fuel line pressure

270 - 310 kpa {2.7 - 3.2 kgf/sq.cm, 39 - 45 psi} 

Fuel hold pressure

More than150 kpa { 1.5 kgf/sq.cm, 22 psi}