Rodeo S 2WD L4-2.2L (1999)
Fuel Pressure Regulator: Description and Operation
Fuel Pressure Regulator
The fuel pressure regulator is a diaphragm-operated relief valve mounted on the fuel rail with fuel pump pressure on one side and manifold pressure on
the other side. The fuel pressure regulator maintains the fuel pressure available to the injector at three times barometric pressure adjusted for engine load.
It may be serviced separately.
For information on diagnosing fuel pressure conditions, refer to Fuel System Diagnosis.
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