Mitsubishi Galant 9G. Manual — part 1012
MULTIPORT FUEL INJECTION (MFI) DIAGNOSIS
TSB Revision
MULTIPORT FUEL INJECTION (MFI) <3.8L ENGINE>
13B-348
STEP 9. Check for harness damage between left bank
heated oxygen sensor (front) connector B-25 (terminal No.
4) and PCM connector B-22 (terminal No. 91).
Q: Is the harness wire in good condition?
YES : Go to Step 10.
NO : Repair it. Then go to Step 12.
AK303071
1
2
3
4
LEFT BANK
HEATED OXYGEN
SENSOR (FRONT)
CONNECTOR: B-25
B-25 (B)
AB
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
MULTIPORT FUEL INJECTION (MFI) DIAGNOSIS
TSB Revision
MULTIPORT FUEL INJECTION (MFI) <3.8L ENGINE>
13B-349
STEP 10. Check for harness damage between left bank
injector connector and PCM connector.
a. Check the harness wire between left bank injector connec-
tor B-30 (terminal No. 2) and PCM connector B-23 (terminal
No. 146) at No. 2 cylinder.
b. Check the harness wire between left bank injector connec-
tor B-27 (terminal No. 2) and PCM connector B-23 (terminal
No. 139) at No. 4 cylinder.
c. Check the harness wire between left bank injector connec-
tor B-26 (terminal No. 2) and PCM connector B-23 (terminal
No. 127) at No. 6 cylinder.
Q: Is the harness wire in good condition?
YES : Go to Step 11.
NO : Repair it. Then go to Step 12.
AK303075
M
1
2
CONNECTOR: B-26, B-27, B-30
B-30 (GR)
B-27 (GR)
B-26 (GR)
HARNESS CONNECTOR:
COMPONENT SIDE
AB
127 126 125 124 123 122 121
133 132 131 130 129 128
140 139 138 137 136 135 134
146 145 144 143 142 141
153 152 151 150 149 148 147
AK303058
HARNESS CONNECTOR:
COMPONENT SIDE
CONNECTOR: B-23
B-23
PCM
AB
AIR CLEANER
MULTIPORT FUEL INJECTION (MFI) DIAGNOSIS
TSB Revision
MULTIPORT FUEL INJECTION (MFI) <3.8L ENGINE>
13B-350
STEP 11. Check the fuel pressure.
Refer to On-vehicle Service
− Fuel Pressure Test
Q: Is the fuel pressure normal?
YES : Replace the PCM. Then go to Step 12.
NO : Repair it. Then go to Step 12.
STEP 12. Test the OBD-II drive cycle.
(1) Carry out a test drive with the drive cycle pattern. Refer to
Diagnostic Function
− OBD-II Drive Cycle − Procedure 6 −
(2) Check the diagnostic trouble code (DTC).
Q: Is DTC P0154 set?
YES : Retry the troubleshooting.
NO : The inspection is complete.
MULTIPORT FUEL INJECTION (MFI) DIAGNOSIS
TSB Revision
MULTIPORT FUEL INJECTION (MFI) <3.8L ENGINE>
13B-351
DTC P0155: Heated Oxygen Sensor Heater Circuit (bank 2, sensor 1)
RED-
WHITE
AK400904
BR
O
W
N
LEFT BANK HEATED
OXYGEN SENSOR (FRONT)
1
2
3
4
BATTERY
1
3
2
4
125
MFI
RELAY
POWERTRAIN
CONTROL
MODULE (PCM)
B-25
MU802605
Left Bank Heated Oxygen Sensor (front) Heater Circuit
B-23
RED-
WHITE
1
2
3
4
B-17X
1
2
3
4
121 122 123 124 125 126 127
128 129 130 131 132 133
134 135 136 137 138 139 140
141 142 143 144 145 146
147 148 149 150 151 152 153
RED
RED-WHITE
TO PCM
TO PCM TO PCM
Нет комментариевНе стесняйтесь поделиться с нами вашим ценным мнением.
Текст