Mitsubishi Galant (2004+). Manual — part 1142
MULTIPORT FUEL INJECTION (MFI) DIAGNOSIS
TSB Revision
MULTIPORT FUEL INJECTION (MFI) <3.8L ENGINE>
13B-261
STEP 8. Check the continuity at right bank heated oxygen
sensor (rear) harness side connector B-08.
(1) Disconnect the connector B-08 and measure at the harness
side.
(2) Check for the continuity between terminal No. 2 and
ground.
• Should be less than 2 ohms.
Q: Does continuity exist?
YES : Go to Step 11.
NO : Go to Step 9.
AK303064
1
2
3
4
THROTTLE BODY
RIGHT BANK
HEATED OXYGEN
SENSOR (REAR)
CONNECTOR: B-08
B-08 (GR)
AB
HARNESS
CONNECTOR:
COMPONENT SIDE
AK303067AH
B-08 HARNESS
CONNECTOR:
COMPONENT SIDE
1
2
3
4
MULTIPORT FUEL INJECTION (MFI) DIAGNOSIS
TSB Revision
MULTIPORT FUEL INJECTION (MFI) <3.8L ENGINE>
13B-262
STEP 9. Check harness connector B-21 at PCM for
damage.
Q: Is the harness 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.
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) <3.8L ENGINE>
13B-263
STEP 10. Check for open circuit and harness damage
between right bank heated oxygen sensor (rear) connector
B-08 (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.
AK303064
1
2
3
4
THROTTLE BODY
RIGHT BANK
HEATED OXYGEN
SENSOR (REAR)
CONNECTOR: B-08
B-08 (GR)
AB
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) <3.8L ENGINE>
13B-264
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
Connector Inspection
. 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)
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