Fuel Pressure Regulator

The fuel pressure regulator is a diaphragm operated pressure relief valve. To maintain precise fuel metering, the fuel pressure regulator maintains a constant pressure differential across the fuel injector. This means that the pressure in the fuel rail will always be at a constant value above manifold absolute pressure.

The specified pressure differential is either 36 PSI (2.55 kg/CM2) or 41 PSI (2.90 kg/CM2) depending on engine application.* Maintenance of this pressure differential is accomplished by balancing a spring, assisted by manifold pressure, against a diaphragm which holds a ball valve on its seat.

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Responses

  • roisin
    How to change toyota prius 2007 fuel pressure regulator?
    3 years ago
  • vanna
    How to change fuel pressure regulator on 2001 toyota tacoma?
    3 years ago
  • milly
    HOW TO CHECK FUEL PRESSURE REGULATOR ON A 07 TOYOTA CAMRY?
    2 years ago
  • marguerite cahill
    How to remove fuel pressure regulator on toyota rava4?
    2 years ago
  • NEA
    How to adjust the fuel pressure regulator 2002 avalon?
    14 days ago

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