Mitsubishi Colt Ralliart. Manual — part 715
![](/vehicles/winoney/ama/flend/qumevie.png)
TROUBLESHOOTING
MULTIPORT FUEL INJECTION (MPI) <4G1>
13B-185
STEP 12. Check and repair harness between
B-121 (terminal No. 1) throttle valve control servo
relay connector and B-106 (terminal No. 4)
engine control relay connector.
• Check power supply line for damage.
Q: Is the harness connector in good condition?
YES :
Go to Step 13 .
NO :
Repair the damaged harness wire.
AK402100
3
2
1
4
AC
Connector: B-121
J/B side
connector
B-121
3
2
1
4
AK402084
J/B side
connector
B-106
Connector: B-106
J/B (front side)
AC
Main
Index
Group
TOC
![](/vehicles/winoney/ama/flend/yommes.png)
TROUBLESHOOTING
MULTIPORT FUEL INJECTION (MPI) <4G1>
13B-186
STEP 13. Check and repair harness between
B-121 (terminal No. 2) throttle valve control servo
relay connector and A-08 (terminal No. 123)
engine-ECU connector.
NOTE: Before checking harness, check intermedi-
ate connector B-110, and repair if necessary.
• Check power supply line for damage.
Q: Is the harness connector in good condition?
YES :
Go to Step 14 .
NO :
Repair the damaged harness wire.
AK402100
3
2
1
4
AC
Connector: B-121
J/B side
connector
B-121
AK402725
77
78
79
80
81
82
83
84
92
93
94
95
96
97
98
99
85
86
87
88
89
90
91
100
101
102
103
104
105
106
115
116
117
118
119
120
121
107
108
109
110
111
112
113
114
130
131
132
133
134
135
136
122
123
124
125
126
127
128
129
72 71
74 73
76 75
R
AI
A-08
Connector:
A-08
A-08 Special tool power plant ECU check
harness
Engine-ECU
Battery
Main
Index
Group
TOC
![](/vehicles/winoney/ama/flend/ngen.png)
TROUBLESHOOTING
MULTIPORT FUEL INJECTION (MPI) <4G1>
13B-187
STEP 14. Check and repair harness between
B-121 (terminal No. 4) throttle valve control servo
relay connector and A-08 (terminal No. 78)
engine-ECU connector.
NOTE: Before checking harness, check intermedi-
ate connector B-112, and repair if necessary.
• Check power supply line for damage.
Q: Is the harness connector in good condition?
YES :
Go to Step 15 .
NO :
Repair the damaged harness wire.
STEP 15. M.U.T.-III diagnosis code.
• Reconfirmation of diagnosis code.
Q: Is the diagnosis code set?
YES :
Replace engine-ECU.
NO :
Intermittent malfunction (Refer to GROUP
00
− How to Use
Troubleshooting/Inspection Service Points
−
How to Cope with Intermittent Malfunctions
).
AK402100
3
2
1
4
AC
Connector: B-121
J/B side
connector
B-121
AK402725
77
78
79
80
81
82
83
84
92
93
94
95
96
97
98
99
85
86
87
88
89
90
91
100
101
102
103
104
105
106
115
116
117
118
119
120
121
107
108
109
110
111
112
113
114
130
131
132
133
134
135
136
122
123
124
125
126
127
128
129
72 71
74 73
76 75
R
AI
A-08
Connector:
A-08
A-08 Special tool power plant ECU check
harness
Engine-ECU
Battery
Main
Index
Group
TOC
![](/vehicles/winoney/ama/flend/bee.png)
TROUBLESHOOTING
MULTIPORT FUEL INJECTION (MPI) <4G1>
13B-188
Code No. P1021: Oil Feeder Control Valve System
OPERATION
• Power is supplied to the oil feeder control valve
(terminal No. 1) from the battery.
• The engine-ECU (terminal No. 52) energizes the
oil feeder control valve (terminal No. 2) by turning
on the power transistor in the unit
AK402694
3
1
2
4
1 2
19
21
20
18
17
16
15
14
1213
11
8 9
L
10
37
52 53 54 555657585960616263646566
38 39 404142434445464748495051
22 23 24 252627282930313233343536
7
5
3
1
6
4
2
4
6
Engine
control
relay
R
R
W-B
B-106
B-112
B-108
A-17
Oil feeder control valve
3
1
4
1
2
52
2
Oil Feeder Control Valve Circuit
A-114
A-101
MU802779
Engine-ECU
To engine-ECU
Wire colour code
B: Black LG: Light green G: Green L: Blue W: White Y: Yellow SB: Sky blue BR: Brown O: Orange GR: Gray
R: Red P: Pink V: Violet
P: Purple
1
1
R
Fusible link
16
20A
J/B
AE
Main
Index
Group
TOC
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