Mitsubishi Electric Lancer Evolution-VII Workshop Manual page 1154

MUT-II Data list
D No. 13 Intake air temperature
sensor
OK: Ambient temperature (More
or less the same as the air
temperature)
NG
Check the following connector:
B-31
OK
Check the intake air temperature
sensor alone. (Refer to P.13A-132.)
OK
Measure at the B-31 air flow sensor
connector.
D Disconnect the connector to
measure at the harness side
(1) Resistance between terminal No.
5 and earth
OK: Less than 2 Ω
(2) Voltage between terminal No. 6
and earth
(Ignition switch: ON)
OK: 4.5 - 4.9 V
OK
To the next page
MPI -
Troubleshooting
OK
Intermittent malfunction
(Refer to GROUP 00 - Points to Note
for Intermittent Malfunctions.)
NG
Repair
NG
Replace the intake air temperature
sensor.
(1) NG
Check the following connector:
C-115
Check the harness between the air
flow sensor and engine-ECU.
D Check for disconnection and
damage of the earth wire.
MUT-II Data list
D No. 13 Intake air temperature
sensor
OK: Ambient temperature (More
or less the same as the air
temperature)
Intermittent malfunction
(Refer to GROUP 00 - Points to Note
for Intermittent Malfunctions.)
(2) NG
Measure at the C-115 engine-ECU
connector.
D Measure the engine-ECU terminal
voltage.
D Disconnect the B-31 air flow
sensor connector.
D Ignition switch: ON
D Voltage between terminal No. 72
and earth.
OK: 4.5 - 4.9 V
Check the following connector:
C-115
Check the harness between the air
flow sensor and engine-ECU.
D Check for short-circuit of the
output wire.
MUT-II Data list
D No. 13 intake air temperature
sensor
OK: Ambient temperature (More
or less the same as air
temperature)
Intermittent malfunction
(Refer to GROUP 00 - Points to Note
for Intermittent Malfunctions.)
NG
OK
NG
OK
NG
OK
OK
NG
NG
OK
NG
OK
NG
OK
13A-17
Repair
Repair
Replace the engine-ECU.
Check the following connector:
C-115
OK NG
Repair
Check and repair the harness between
the air flow sensor and engine-ECU.
D Check for disconnection of the
output wire.
Repair
Repair
Replace engine-ECU.