Mitsubishi 3000GT Service Manual page 270

FUEL PRESSURE SOLENOID <Turbo>
OPERATION
The fuel pressure solenoid is an ON-OFF type solenoid valve that switches the pressure introduced
l
to the fuel pressure regulator between either intake manifold pressure or barometric pressure.
Battery power is supplied to this valve via the MFI relay. When the engine control module turns
l
ON the internal power transistor, the coil is energized to allow barometric pressure to be introduced
to the fuel pressure regulator.
MULTIPORT On-Vehicle Inspection of MFI
FUEL INJECTION - Components
TSB Revision
MFI relay
- - I - -
connector
Fuel pressure
solenoid
Engine
control
module
Engine control module connector
side