Is attached to the fuel injection supply manifold (9F792)
downstream of the fuel injectors (9F593)
.
Regulates the fuel pressure supplied to the fuel injectors
.
Is a diaphragm-operated relief valve in which one side of the diaphragm
senses fuel pressure and the other side is subjected to intake manifold vacuum.
Nominal fuel pressure is established by a spring preload applied to the
diaphragm.
Balances one side of the diaphragm with manifold pressure to maintain a
constant fuel pressure drop across the fuel injectors
.
Bypasses and returns excess fuel to the fuel tank (9002)
.
