Mitsubishi Montero (2004+). Manual — part 151
MULTIPORT FUEL INJECTION (MFI) DIAGNOSIS
TSB Revision
MULTIPORT FUEL INJECTION (MFI)
13A-91
STEP 6. Check connector D-135 at PCM for damage.
Q: Is the connector in good condition?
YES : Replace the PCM. Then go to Step 12.
NO : Repair or replace it. Refer to GROUP 00E, Harness
Connector Inspection
. Then go to Step 12.
STEP 7. Measure the ground voltage at manifold absolute
pressure sensor connector B-28 by backprobing.
(1) Do not disconnect the connector B-28.
(2) Turn the ignition switch to the "ON" position.
(3) Measure the voltage between terminal No. 2 and ground by
backprobing.
• Voltage should be 0.5 volt or less.
(4) Turn the ignition switch to the "LOCK" (OFF) position.
Q: Is the measured voltage 0.5 volt or less?
YES : Go to Step 10.
NO : Go to Step 8.
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CONNECTOR: D-135
HARNESS CONNECTOR:
COMPONENT SIDE
AB
PCM
D-135(GR)
AK200975
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3
AB
HARNESS
CONNECTOR:
COMPONENT SIDE
CONNECTOR: B-28
B-28(B)
3
2
1
AK203038
B-28 HARNESS
CONNECTOR:
HARNESS SIDE
AI
MULTIPORT FUEL INJECTION (MFI) DIAGNOSIS
TSB Revision
MULTIPORT FUEL INJECTION (MFI)
13A-92
STEP 8. Check connector B-28 at the manifold absolute
pressure sensor and connector D-135 at PCM for damage.
Q: Is the connector in good condition?
YES : Go to Step 9.
NO : Repair or replace it. Refer to GROUP 00E, Harness
Connector Inspection
. Then go to Step 12.
AK200975
1
2
3
AB
HARNESS
CONNECTOR:
COMPONENT SIDE
CONNECTOR: B-28
B-28(B)
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CONNECTOR: D-135
HARNESS CONNECTOR:
COMPONENT SIDE
AB
PCM
D-135(GR)
MULTIPORT FUEL INJECTION (MFI) DIAGNOSIS
TSB Revision
MULTIPORT FUEL INJECTION (MFI)
13A-93
STEP 9. Check for open circuit between manifold absolute
pressure sensor connector B-28 (terminal No. 2) and PCM
connector D-135 (terminal No. 96).
Q: Is the harness wire in good condition?
YES : Replace the PCM. Then go to Step 12.
NO : Repair it. Then go to Step 12.
STEP 10. Check connector B-28 at manifold absolute
pressure sensor for damage.
Q: Is the connector in good condition?
YES : Go to Step 11.
NO : Repair or replace it. Refer to GROUP 00E, Harness
Connector Inspection
. Then go to Step 12.
AK200975
1
2
3
AB
HARNESS
CONNECTOR:
COMPONENT SIDE
CONNECTOR: B-28
B-28(B)
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CONNECTOR: D-135
HARNESS CONNECTOR:
COMPONENT SIDE
AB
PCM
D-135(GR)
AK200975
1
2
3
AB
HARNESS
CONNECTOR:
COMPONENT SIDE
CONNECTOR: B-28
B-28(B)
MULTIPORT FUEL INJECTION (MFI) DIAGNOSIS
TSB Revision
MULTIPORT FUEL INJECTION (MFI)
13A-94
STEP 11. Check connector D-135 at PCM for damage.
Q: Is the connector in good condition?
YES : Replace the manifold absolute pressure sensor. Then
go to Step 12.
NO : Repair or replace it. Refer to GROUP 00E, Harness
Connector Inspection
. 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 −
Other Monitor
(2) Check the diagnostic trouble code (DTC).
Q: Is DTC P0108 set?
YES : Retry the troubleshooting.
NO : The inspection is complete.
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CONNECTOR: D-135
HARNESS CONNECTOR:
COMPONENT SIDE
AB
PCM
D-135(GR)
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