Mitsubishi Montero Sport (2004+). Manual — part 286
MULTIPORT FUEL INJECTION (MFI) DIAGNOSIS
TSB Revision
MULTIPORT FUEL INJECTION (MFI)
13A-557
Q: Are the connectors in good condition?
YES : It can be assumed that this malfunction is intermittent.
(Refer to GROUP 00, How to Use
Troubleshooting/Inspection Service Points
− How to
Cope with Intermittent Malfunction
). Then go
to Step 16 .
NO : Repair or replace the damaged component. (Refer to
GROUP 00E, Harness Connector Inspection
STEP 12. Measure the fuel tank differential pressure
sensor ground voltage at PCM connector C-90 by
backprobing.
(1) Do not disconnect PCM connector C-90.
(2) Turn the ignition switch to the "ON" position.
(3) Measure the voltage between terminal 57 and ground by
backprobing.
• The measured voltage should measure 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 13 .
NO : Go to Step 14 .
AC002614
CONNECTOR: E-28
FUEL TANK
DIFFERENTIAL
PRESSURE
SENSOR
AH
E-28 (B)
2 1
3
E-28 HARNESS SIDE
CONNECTOR
PCM
60
46
66
57
45
44
64
55 56
65
62 63
52 53
5051
61
42
59
48
41
47
58
43
49
54
AC202313
C-90 (GR)
AC
CONNECTOR: C-90
C-90 (GR)
C-90 HARNESS SIDE CONNECTOR
AC203263 AB
C-90 HARNESS CONNECTOR:
HARNESS SIDE
MULTIPORT FUEL INJECTION (MFI) DIAGNOSIS
TSB Revision
MULTIPORT FUEL INJECTION (MFI)
13A-558
STEP 13. Check connectors E-44, C-16, C-71 at
intermediate connector and C-90 at PCM and E-28 at fuel
tank differential pressure sensor for loose, corroded or
damaged terminals, or terminals pushed back in the
connector.
AC203242 AC
CONNECTOR: E-44
E-44
E-44 MALE SIDE CONNECTOR
20
19
7
16
6
17
15
5
14
18
8
4
11
3
12
2
9
1
10
13
AC203236 AC
CONNECTOR: C-16
C-16
22
2021
10
9
8
1718
6 7
19
1415
4 5
1112
1 2 3
13
16
C-16 MALE SIDE
CONNECTOR
AC203241
CONNECTOR: C-71
AD
C-71
9 10
8
6 7
31 32
30
29
18 19 20 21
5
4
2
1
3
27
26
24
23
25
12 13 14 15 16 17
28
11
22
33
C-71 JOINT CONNECTOR
MULTIPORT FUEL INJECTION (MFI) DIAGNOSIS
TSB Revision
MULTIPORT FUEL INJECTION (MFI)
13A-559
Q: Are the connectors and terminals in good condition?
YES : It can be assumed that this malfunction is intermittent.
(Refer to GROUP 00, How to Use
Troubleshooting/Inspection Service Points
− How to
Cope with Intermittent Malfunction
). Then go
to Step 16 .
NO : Repair or replace the damaged components. (Refer to
GROUP 00E, Harness Connector Inspection
PCM
60
46
66
57
45
44
64
55 56
65
62 63
52 53
5051
61
42
59
48
41
47
58
43
49
54
AC202313
C-90 (GR)
AC
CONNECTOR: C-90
C-90 (GR)
C-90 HARNESS SIDE CONNECTOR
AC002614
CONNECTOR: E-28
FUEL TANK
DIFFERENTIAL
PRESSURE
SENSOR
AH
E-28 (B)
2 1
3
E-28 HARNESS SIDE
CONNECTOR
MULTIPORT FUEL INJECTION (MFI) DIAGNOSIS
TSB Revision
MULTIPORT FUEL INJECTION (MFI)
13A-560
STEP 14. Check connector C-90 at PCM for loose,
corroded or damaged terminals, for terminals pushed back
in the connector.
Q: Are the connectors and terminals in good condition?
YES : Go to Step 15 .
NO : Repair or replace the damaged components. (Refer to
GROUP 00E, Harness Connector Inspection
PCM
60
46
66
57
45
44
64
55 56
65
62 63
52 53
5051
61
42
59
48
41
47
58
43
49
54
AC202313
C-90 (GR)
AC
CONNECTOR: C-90
C-90 (GR)
C-90 HARNESS SIDE CONNECTOR
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