Mitsubishi Eclipse / Eclipse Spyder (2000-2002). Service and repair manual — part 233
MULTIPORT FUEL INJECTION (MFI) DIAGNOSIS
TSB Revision
MULTIPORT FUEL INJECTION (MFI) <3.0L ENGINE>
13B-131
STEP 7. Check for open circuit or short circuit to ground
between right bank heated oxygen sensor (front)
connector B-27 terminal 3 and ECM connector C-51
terminal 4 <M/T> or PCM connector C-52 terminal 4 <A/T>.
Q: Is the harness wire in good condition?
YES : Replace the ECM or PCM. Then go to Step 12.
NO : Repair it. Then go to Step 12.
STEP 8. Check connector C-51 at ECM <M/T> or connector
C-52 at PCM <A/T> 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.
AK000208 AB
CONNECTOR : B-27
AK000225
CONNECTOR : C-51<M/T>, C-52<A/T>
C-52
C-51
PCM<A/T>
ECM<M/T>
AJ
AK000225
CONNECTOR : C-51<M/T>, C-52<A/T>
C-52
C-51
PCM<A/T>
ECM<M/T>
AJ
MULTIPORT FUEL INJECTION (MFI) DIAGNOSIS
TSB Revision
MULTIPORT FUEL INJECTION (MFI) <3.0L ENGINE>
13B-132
STEP 9. Check for harness damage between MFI relay
connector A-21X terminal 1 and right bank heated oxygen
sensor (front) connector B-27 terminal 1.
Q: Is the harness wire in good condition?
YES : Go to Step 10.
NO : Repair it. Then go to Step 12.
STEP 10. Check for harness damage between right bank
heated oxygen sensor (front) connector B-27 terminal 3
and ECM connector C-51 terminal 4 <M/T> or PCM
connector C-52 terminal 4 <A/T>.
Q: Is the harness wire in good condition?
YES : Go to Step 11.
NO : Repair it. Then go to Step 12.
AK000226
AK000226AB
CONNECTOR : A-21X
MFI RELAY
AK000208 AB
CONNECTOR : B-27
AK000208 AB
CONNECTOR : B-27
AK000225
CONNECTOR : C-51<M/T>, C-52<A/T>
C-52
C-51
PCM<A/T>
ECM<M/T>
AJ
MULTIPORT FUEL INJECTION (MFI) DIAGNOSIS
TSB Revision
MULTIPORT FUEL INJECTION (MFI) <3.0L ENGINE>
13B-133
STEP 11. Check the trouble symptoms.
(1) Carry out a test drive with the drive cycle pattern. Refer to
, Procedure 6
−
Other Monitor.
(2) Check the diagnostic trouble code (DTC).
Q: Is the DTC P0135 is output?
YES : Replace the ECM or PCM. Then go to Step 12.
NO : It can be assumed that this malfunction is intermittent.
Refer to GROUP 00, How to Use Troubleshooting/
Inspection Service Points (
STEP 12. Test the OBD-II drive cycle.
(1) Carry out a test drive with the drive cycle pattern. Refer to
, Procedure 6
−
Other Monitor.
(2) Check the diagnostic trouble code (DTC).
Q: Is the DTC P0135 is output?
YES : Retry the troubleshooting.
NO : The inspection is complete.
MULTIPORT FUEL INJECTION (MFI) DIAGNOSIS
TSB Revision
MULTIPORT FUEL INJECTION (MFI) <3.0L ENGINE>
13B-134
DTC P0136: O
2
Sensor Circuit Malfunction (bank 1 sensor 2)
AK000692
BLA
CK
BLA
CK
YELLO
W
3 4
1 2
FROM MFI RELAY
RIGHT BANK HEATED
OXYGEN SENSOR(REAR)
TO ECM
OR PCM
74<M/T>*2
74<A/T>*4
49<M/T>*1
57<A/T>*3
1
3
2
4
B-28
MU802665
NOTE
*1:ECM connector C-58<M/T>
*2:ECM connector C-62<M/T>
*3:PCM connector C-55<A/T>
*4:PCM connector C-59<A/T>
ENGINE CONTROL
MODULE(ECM)<M/T>
OR
POWERTRAIN CONTROL
MODULE(PCM)<A/T>
65
43
50
42
49
41
48
60 61
64
46 47
58 59
67 68
45
56
66
52
51
44
53
62
54
63
57
55
C-58<M/T>
(MU803782)
C-55<A/T>
(MU803781)
42 43
48 49 50 51 52 53 54 55 56 57
46
45
44
58 59
60 61 62 63
64 65 66
47
41
98
78
71
88 89
76 77
72
79
91
73
80
74
75
81
92
82 83
93
84 85
94
86 87
95 96
90
80
87
81
94
85
82
84
93
86
98
99
74
92
73
83
88
91
95
97
96
100
89
78
71
90
76 77
75
72
79
97
C-62<M/T>
(MU803783)
C-59<A/T>
(MU803782)
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