Mitsubishi FUEL Manual page 229

Multipoint fuel injection (mpi)
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MUT-II Actuator Test
01 No. 1 injector
OK: The idling condition should
change.
NG
Check the following connector:
B-98
OK
Measure at intermediate connector
B-98.
D Disconnect the connector and
measure at the harness side.
D Resistance between terminals 1
and 2
OK: 0.9 - 1.1 W
OK
Check the following connector:
B-96
OK
Check the harness wire between the
injector driver and the intermediate
connector.
OK
Check the following connector:
C-165 <M/T>, C-177 <A/T>
OK
Check the harness wire between the
injector driver and the engine-ECU
<M/T> or engine-A/T-ECU <A/T>.
OK
Use an analyzer to measure the
signal waveform at engine-ECU
connectors C-163 and C-165 <M/T>
or engine-A/T-ECU connectors C-176
and C-177 <A/T>.
D Engine: Idling
D Voltage between terminal 1 and
earth
OK: A normal waveform should
be displayed as described
on P.13I-118 (INSPECTION
PROCEDURE USING AN
ANALYZER).
OK
Check the following connector:
B-02
OK
Check the harness wire between No.
1 injector and the intermediate
connector.
OK
Replace the No. 1 injector.
Check the trouble symptoms.
GDI -
Troubleshooting
OK
Check the trouble symptoms.
Replace the injector driver.
Check the trouble symptoms.
NG
Repair
NG
Check the following connector:
B-02
Check the harness wire between No.
1 injector and the intermediate
connector.
Replace the No. 1 injector.
NG
Repair
NG
Repair
NG
Repair
NG
Repair
NG
Check the following connector:
B-02
Check the harness wire between the
No. 1 injector and the intermediate
connector.
Replace the engine-ECU <M/T> or
engine-A/T-ECU <A/T>.
NG
Repair
NG
Repair
NG
Replace the injector driver.
OK
NG
NG
NG
OK
NG
OK
NG
OK
NG
OK
13I-35
Transient malfunction
(Refer to GROUP 00 - Points to
Note for Intermittent Malfunctions.)
Replace the engine-ECU <M/T> or
engine-A/T-ECU <A/T>.
Repair
Repair
Repair
Repair

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