Mitsubishi 380. Manual - part 639
MULTIPORT FUEL INJECTION (MPI) DIAGNOSIS
MULTIPORT FUEL INJECTION (MPI) <3.8L ENGINE>
13A-648
(B-20) - 38
Camshaft position
sensor
Engine: cranking
0.4 - 4.0 V
Engine: idling
2.9 - 3.9 V
(B-20) - 58
Intake air
temperature
sensor
Ignition switch:
"ON"
When Intake air temperature
is
−20°C (−4°F)
3.8
− 4.4 V
When Intake air temperature
is 0
°C (32°F)
3.2
− 3.8 V
When Intake air temperature
is 20
°C (68°F)
2.3
− 2.9 V
When Intake air temperature
is 40
°C (104°F)
1.5
− 2.1 V
When Intake air temperature
is 60
°C (140°F)
0.8
− 1.4 V
When Intake air temperature
is 80
°C (176°F)
0.4
− 1.0 V
(B-20) - 26
Mass airflow
sensor
Engine: revving
Voltage increase
in response to
revving
(B-20) - 48
Left bank heated
oxygen sensor
heater (front)
Engine: warming up, idling (15 seconds after
starting engine)
0
− 11 V at slow
pulse rate
Engine: revving
0
− 11 V at slow
pulse rate
(B-20) - 47
Right bank heated
oxygen sensor
heater (front)
Engine: warming up, idling (15 seconds after
starting engine)
0
− 11 V at slow
pulse rate
Engine: revving
0
− 11 V at slow
pulse rate
(B-20) - 33
Left bank heated
oxygen sensor
heater (rear)
Engine: warming up, idling
0
− 11 V at slow
pulse rate
Engine: revving
0
− 11 V at slow
pulse rate
(B-20) - 32
Right bank heated
oxygen sensor
heater (rear)
Engine: warming up, idling
0
− 11 V at slow
pulse rate
Engine: revving
0
− 11 V at slow
pulse rate
(B-20) - 49
Throttle actuator
control motor (
−)
• Ignition switch: "ON"
• Accelerator pedal: fully closed → fully opened
Decreases
slightly AC
voltage.
(B-20) - 50
Throttle actuator
control motor (+)
• Ignition switch: "ON"
• Accelerator pedal: fully opened → fully closed
Decreases
slightly AC
voltage.
(B-20) - 21
Evaporative
emission purge
solenoid
Ignition switch: "ON"
B+
Engine: warm up, 3,000 r/min (within 3 minutes
after the engine starting sequence is completed)
B+ to 0.1V
pulses
(CONNECTOR
HOUSING NO.)
TERMINAL NO.
INSPECTION
ITEM
INSPECTION CONDITION (ENGINE
CONDITION)
NORMAL
CONDITION