Mitsubishi FUEL Manual page 188

13A-188
Terminal Check item
No.
4 Right bank oxygen sensor heater (front)
27 Right bank oxygen sensor heater (rear)
60 Backup power supply
42 Sensor impressed voltage
99 Ignition switch-IG
44 Engine coolant temperature sensor
78 Throttle position sensor
51 Barometric pressure sensor
80 Vehicle speed sensor
79 Idle position switch
50 Top dead centre sensor
43 Crank angle sensor
MPI <6A1> -
Troubleshooting
Check condition (Engine condition)
Engine: Idling
Engine: 3,500 r/min
Engine: Idling
Engine: 3,500 r/min
Ignition switch: OFF
Ignition switch: ON
Ignition switch: ON
Ignition switch:
ON
Ignition switch:
ON
Ignition switch:
ON
D Ignition switch: ON
D Move the vehicle slowly forward
Ignition switch:
ON
Engine: Cranking
Engine: Idle speed
Engine: Cranking
Engine: Idle speed
Normal condition
0 - 3 V
System voltage
0 - 3 V
System voltage
System voltage
4.5 - 5.5 V
System voltage
When engine 3.2 - 3.8 V
coolant temper-
ature is 0_C
When engine 2.3 - 2.9 V
coolant temper-
ature is 20_C
When engine 1.3 - 1.9 V
coolant temper-
ature is 40_C
When engine 0.3 - 0.9 V
coolant temper-
ature is 80_C
Set throttle 0.3 - 1.0 V
valve to idle
position
Fully open 4.5 - 5.5 V
throttle valve
When altitude is 3.7 - 4.3 V
0 m
When altitude is 3.2 - 3.8 V
1,200 m
0 « 5 V
(Changes repeated-
ly)
Set throttle 0 - 1 V
valve to idle
position
Slightly open 4 V or more
throttle valve
0.4 - 3.0 V
0.5 - 2.0 V
0.4 - 4.0 V
1.5 - 2.5 V