Mitsubishi FUEL Manual page 242

Multipoint fuel injection (mpi)
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13I-48
MUT-II Data list
22 Crank angle sensor
OK: Refer to P.13I-98, DATA
LIST REFERENCE TABLE.
NG
Check the following connector:
B-77
OK
Measure at the crank angle sensor
connector B-77.
D Disconnect the connector and
measure at the harness side.
(1) The resistance between terminal
1 and earth
OK: 2 W or less
(2) The voltage between terminal 2
and earth
(Ignition switch: ON)
OK: 4.8 - 5.2 V
(3) The voltage between terminal 3
and earth
(Ignition switch: ON)
OK: System voltage
OK
Use an analyzer to measure the
output waveform at the crank angle
sensor connector B-77.
D Use the test harness (MB991658)
to connect the connector, and
measure at the pick-up harness
side.
D Engine: Idling
D The voltage between terminal 2
and earth
OK: A normal waveform should
be displayed as described
on P.13I-118 (Inspection
Procedure Using an Ana-
lyzer). Its maximum value
should be 4.8 V or more,
and its minimum value
should be 0.6 V or less
with no noise in waveform.
OK
Check the trouble symptoms.
NG
Replace the engine-ECU <M/T> or
engine-A/T-ECU <A/T>.
GDI -
Troubleshooting
OK
Intermittent malfunction
(Refer to GROUP 00 - Points to
Note for Intermittent Malfunctions.)
NG
Repair
(1) NG
Check the harness between the
crank angle sensor and earth, and
repair if necessary.
(2) NG
Measure at engine-ECU connector
C-164 <M/T> or engine-A/T-ECU
connector C-176 <A/T>.
D Measure the voltage at the
engine-ECU terminal <M/T> or
engine-A/T-ECU terminal <A/T>.
D Disconnect the connector B-77
D Ignition switch: ON
D The voltage between terminal 43
<M/T>, 45 <A/T> and earth.
OK: 4.8 - 5.2 V
Check the following connectors:
C-164 <M/T>, C-176 <A/T>
Check the harness wire between the
crank angle sensor and the
engine-ECU <M/T> or
engine-A/T-ECU <A/T>.
Check the trouble symptoms.
(3) NG
Check the following connector:
C-31
Check the harness wire between the
crank angle sensor and the engine
control relay, and repair if necessary.
NG
Check the crank angle sensor vane.
Replace the crank angle sensor.
Check the trouble symptoms.
Check the following connectors:
C-164 <M/T>, C-176 <A/T>
Check the harness wires between
the crank angle sensor and the
engine-ECU <M/T> or
engine-A/T-ECU <A/T>, crank angle
sensor and the engine control relay,
and the crank angle sensor and
earth. Then, repair if necessary.
OK
NG
NG
OK
NG
OK
NG
NG
OK
NG
OK
NG
NG
OK
Check the following connector:
C-164 <M/T>, C-176 <A/T>
NG
OK
Repair
Check the harness wire between the
crank angle sensor and the
engine-ECU <M/T> or
engine-A/T-ECU <A/T>, and repair if
necessary.
Repair
Repair
Replace the engine-ECU <M/T> or
engine-A/T-ECU <A/T>.
Repair
Replace
Repair

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