Mitsubishi Galant 9G. Manual — part 732
MULTIPORT FUEL INJECTION (MFI) DIAGNOSIS
TSB Revision
MULTIPORT FUEL INJECTION (MFI) <2.4L ENGINE>
13A-370
STEP 10. Check for open circuit and harness damage
between cylinder 2, 3 heated oxygen sensor (rear)
connector B-35 (terminal No. 2) and PCM connector B-21
(terminal No. 69).
Q: Is the harness wire in good condition?
YES : Replace the PCM. Then go to Step 15.
NO : Repair it. Then go to Step 15.
AK303835
1
2
3
4
AB
CONNECTOR: B-35
B-35 (B)
CYLINDER 2, 3
HEATED OXYGEN
SENSOR (REAR)
HARNESS
CONNECTOR:
COMPONENT SIDE
AK303018
55
56
54 53 52 51
57
62 61 60 59 58
63
69 68 67 66 65 64
70
75 74 73 72 71
76
82 81 80 79 78 77
83
CONNECTOR: B-21
PCM
AB
HARNESS CONNECTOR:
COMPONENT SIDE
AIR CLEANER
B-21 (B)
MULTIPORT FUEL INJECTION (MFI) DIAGNOSIS
TSB Revision
MULTIPORT FUEL INJECTION (MFI) <2.4L ENGINE>
13A-371
STEP 11. Check harness connector B-21 at PCM for
damage.
Q: Is the harness connector in good condition?
YES : Go to Step 12.
NO : Repair or replace it. Refer to GROUP 00E, Harness
. Then go to Step 15.
AK303018
55
56
54 53 52 51
57
62 61 60 59 58
63
69 68 67 66 65 64
70
75 74 73 72 71
76
82 81 80 79 78 77
83
CONNECTOR: B-21
PCM
AB
HARNESS CONNECTOR:
COMPONENT SIDE
AIR CLEANER
B-21 (B)
MULTIPORT FUEL INJECTION (MFI) DIAGNOSIS
TSB Revision
MULTIPORT FUEL INJECTION (MFI) <2.4L ENGINE>
13A-372
STEP 12. Check for harness damage between cylinder 2, 3
heated oxygen sensor (rear) connector B-35 (terminal No.
2) and PCM connector B-21 (terminal No. 69).
Q: Is the harness wire in good condition?
YES : Go to Step 13.
NO : Repair it. Then go to Step 15.
AK303835
1
2
3
4
AB
CONNECTOR: B-35
B-35 (B)
CYLINDER 2, 3
HEATED OXYGEN
SENSOR (REAR)
HARNESS
CONNECTOR:
COMPONENT SIDE
AK303018
55
56
54 53 52 51
57
62 61 60 59 58
63
69 68 67 66 65 64
70
75 74 73 72 71
76
82 81 80 79 78 77
83
CONNECTOR: B-21
PCM
AB
HARNESS CONNECTOR:
COMPONENT SIDE
AIR CLEANER
B-21 (B)
MULTIPORT FUEL INJECTION (MFI) DIAGNOSIS
TSB Revision
MULTIPORT FUEL INJECTION (MFI) <2.4L ENGINE>
13A-373
STEP 13. Check for short circuit to ground and harness
damage between cylinder 2, 3 heated oxygen sensor (rear)
connector B-35 (terminal No. 4) and PCM connector B-22
(terminal No. 96).
Q: Is the harness wire in good condition?
YES : Go to Step 14.
NO : Repair it. Then go to Step 15.
AK303835
1
2
3
4
AB
CONNECTOR: B-35
B-35 (B)
CYLINDER 2, 3
HEATED OXYGEN
SENSOR (REAR)
HARNESS
CONNECTOR:
COMPONENT SIDE
AK303016
104
96
94
95
93 92 91
99 98 97
103 102 101 100
108 107 106 105
113 112 111 110 109
CONNECTOR: B-22
B-22 (B)
PCM
AB
HARNESS CONNECTOR:
COMPONENT SIDE
AIR CLEANER
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