Oasis LS L4-2253cc 2.3L SOHC VTEC MFI (1999)
Fuel Pressure Regulator: Description and Operation
DESCRIPTION
The fuel pressure regulator maintains a constant fuel pressure to the fuel injectors. When the difference between the fuel pressure and manifold
pressure exceeds 340 kPa (3.5 kgf/cm2, 50 psi), the diaphragm is pushed upward, and the excess fuel is fed back into the fuel tank through the
return line.
CLOSED:
OPEN: