Mitsubishi 3000GT Workshop Manual Supplement page 14

FUEL
-
On-vehicle Inspection of
MPI
Components
Repair the
harness.
(@+-
@r)
Check for continuity between the
fuel pump
relay No.2 and
the
resistor (for fuel pump).
o
Fuel pump relay No.2 connector:
Disconnected
o
Resistor (for
fuel
pump)connector:
Disconnected
Measure the power supply voltage of the
fuel
pump relay No.1.
r
Fuel pump relay No.1 connector:
Disconnected
lgnition switch
Voltage
(V)
OFF
0
ON
SV
Repair the
hamess.
(lgnition
switch
-
@
s
+)or
check
the
ignition switch.
?FU1928
Check for an open-circuit, or a short-circuit
to earth between the
fuel
pump relay
No.1
and the engine control unit.
o
Control
relay connector:
Disconnected
o
Engine
control unit connector:
Disconnected
Repair the
harness.
(@z-a
or
zz)
Check for
continuity between the control
relay No.1 and the
control relay No.2.
o
Control
relay No.1 connector:
Disconnected
o
Control relay No.2 connector:
Disconnected
Repair the
harness.
(@t-
@g)
(@t-
@ s)
rFr
l-\----l
L__PJ
?FU2038
Check for an open-circuit, or a short-circuit
to earth, between the
fuel pump relay No.2
and the
fuel
pump.
o
Fuel pump relay No.2 connector:
Disconnected
o
Fuel pump connector:
Disconnected
A
Repair the
harness.
(@t-
@ 2)