Mitsubishi Eclipse. Manual — part 420
MULTIPORT FUEL INJECTION (MFI) DIAGNOSIS
TSB Revision
MULTIPORT FUEL INJECTION (MFI) <3.0L>
13B-223
STEP 6. Check connector B-27 at right bank heated
oxygen sensor (front) and connector C-62 at ECM <M/T> or
connector C-59 at PCM <A/T> for damage.
Q: Is the connector in good condition?
YES : Repair harness wire between right bank heated
oxygen sensor (front) connector B-27 (terminal No. 4)
and ECM connector C-62 (terminal No. 72) <M/T> or
PCM connector C-59 (terminal No. 72) <A/T>
because of open circuit or harness damage. Then go
to Step 15.
NO : Repair or replace it. Refer to GROUP 00E, Harness
Connector Inspection
. Then go to Step 15.
AK300409
1
2
3
4
RIGHT BANK
HEATED OXYGEN
SENSOR (FRONT)
AB
B-27 (B)
CONNECTOR: B-27
HARNESS CONNECTOR:
COMPONENT SIDE
AK300460
98
78
71
88
89
76
77
72
79
91
73
80
74
75
81
92
82
83
93
84
85
94
86
87
95
96
90
97
CONNECTOR: C-59 <A/T>
C-59 (GR)
AB
HARNESS CONNECTOR:
COMPONENT SIDE
MULTIPORT FUEL INJECTION (MFI) DIAGNOSIS
TSB Revision
MULTIPORT FUEL INJECTION (MFI) <3.0L>
13B-224
STEP 7. Check connector B-27 at right bank heated
oxygen sensor (front) for damage.
Q: Is the connector in good condition?
YES : Go to Step 8.
NO : Repair or replace it. Refer to GROUP 00E, Harness
Connector Inspection
. Then go to Step 15.
AK300445
80
87
81
94
85
82
84
93
86
98
99
74
92
73
83
88
91
95
97 96
100
89
78
71
90
76
77
75
72
79
CONNECTOR: C-62 <M/T>
C-62 (GR)
AB
HARNESS CONNECTOR:
COMPONENT SIDE
AK300409
1
2
3
4
RIGHT BANK
HEATED OXYGEN
SENSOR (FRONT)
AB
B-27 (B)
CONNECTOR: B-27
HARNESS CONNECTOR:
COMPONENT SIDE
MULTIPORT FUEL INJECTION (MFI) DIAGNOSIS
TSB Revision
MULTIPORT FUEL INJECTION (MFI) <3.0L>
13B-225
STEP 8. Check the continuity at right bank heated oxygen
sensor (front) harness side connector B-27.
(1) Disconnect the connector B-27 and measure at the harness
side.
(2) Check for the continuity between terminal No. 2 and
ground.
• Should be less than 2 ohms.
Q: Is the continuity normal?
YES : Go to Step 11.
NO : Go to Step 9.
AK300409
1
2
3
4
RIGHT BANK
HEATED OXYGEN
SENSOR (FRONT)
AB
B-27 (B)
CONNECTOR: B-27
HARNESS CONNECTOR:
COMPONENT SIDE
AK000239BG
B-27 HARNESS
CONNECTOR:
COMPONENT SIDE
2 1
4 3
MULTIPORT FUEL INJECTION (MFI) DIAGNOSIS
TSB Revision
MULTIPORT FUEL INJECTION (MFI) <3.0L>
13B-226
STEP 9. Check connector C-58 at ECM <M/T> or connector
C-55 at PCM <A/T> for damage.
Q: Is the connector in good condition?
YES : Go to Step 10.
NO : Repair or replace it. Refer to GROUP 00E, Harness
Connector Inspection
. Then go to Step 15.
AK300462
42
43
48
49
50
51
52
53
54
55
56
57
46 45 44
58
59
60
61
62
63
64
65
66
47
41
CONNECTOR: C-55 <A/T>
C-55 (GR)
AB
HARNESS CONNECTOR:
COMPONENT SIDE
AK300748
65
43
50
42
49
41
48
60
61
64
46
47
58
59
67
68
45
56
66
52 51
44
53
62
54
63
57
55
CONNECTOR: C-58 <M/T>
AB
C-58 (GR)
HARNESS CONNECTOR:
COMPONENT SIDE
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