Mitsubishi 3000GT Service Manual page 254

HARNESS INSPECTION
Rear bank
harness side
connector _
---
connector
MULTIPORT On-Vehicle Inspection of MFI
FUEL INJECTION - Components
Measure the power supply volt-
l
- Resistor connector: Discon-
nected
Ignition switch: ON
l
Battery voltage _
Measure the power supply volt-
age of the front bank injector.
Resistor connector: Con-
l
necteu
Injector connector: Discon-
l
Ignition switch: ON
l
Battery voltage
Measure the power supply volt-
age of the rear bank injector.
Connector: Disconnected
l
l Ignition switch: ON
Battery voltage
Check for an open-circuit, or a
short-circuit between the front
--- 3EiI bank iniector and the engine con-
trol module.
lniector connector: Discon-
l
Engine control module con-
l
nector: Disconnected
TSB Revision
Repair the
harness.
(A4 - MFI
relay)
Repair the
harness.
(B C Dl-
MFI relay)
Check pow-
er supply
Check resis-
tor
harness
MFI relay)
Check pow-
er supply
Check resis-
Repair the
harness.