Mitsubishi Eclipse. Manual — part 381
MULTIPORT FUEL INJECTION (MFI) DIAGNOSIS
TSB Revision
MULTIPORT FUEL INJECTION (MFI) <3.0L>
13B-67
STEP 11. Check harness damage between manifold
absolute pressure sensor connector B-04 (terminal No. 1)
and ECM connector C-62 (terminal No. 92) <M/T> or PCM
connector C-59 (terminal No. 91) <A/T>.
Q: Is the harness wire in good condition?
YES : Replace the manifold absolute pressure sensor. Then
go to Step 12.
NO : Repair it. Then go to Step 12.
AK103763
2 1
3
CONNECTOR: B-04
AC
B-04(B)
HARNESS CONNECTOR:
COMPONENT SIDE
AK300460
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
97
CONNECTOR: C-59 <A/T>
C-59 (GR)
AB
HARNESS CONNECTOR:
COMPONENT SIDE
AK300445
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
CONNECTOR: C-62 <M/T>
C-62 (GR)
AB
HARNESS CONNECTOR:
COMPONENT SIDE
MULTIPORT FUEL INJECTION (MFI) DIAGNOSIS
TSB Revision
MULTIPORT FUEL INJECTION (MFI) <3.0L>
13B-68
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 P0106 set?
YES : Retry the troubleshooting.
NO : The inspection is complete.
DTC P0107: Manifold Absolute Pressure Circuit Low Input
AK301451
1 2 3
SKY
-BLUE
GREEN-YELLO
W
BLA
C
K
MANIFOLD ABSOLUTE
PRESSURE (MAP) SENSOR
B-04
(MU802723)
92 <M/T>*2
91 <A/T>*4
42 <M/T>*1
46 <A/T>*3
49 <M/T>*1
57 <A/T>*3
1
2
3
5V
ENGINE CONTROL
MODULE (ECM) <M/T>
OR
POWERTRAIN CONTROL
MODULE (PCM) <A/T>
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>
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)
Manifold Absolute Pressure Sensor Circuit
MULTIPORT FUEL INJECTION (MFI) DIAGNOSIS
TSB Revision
MULTIPORT FUEL INJECTION (MFI) <3.0L>
13B-69
.
CIRCUIT OPERATION
• A 5-volt voltage is supplied to the manifold abso-
lute pressure sensor power terminal (terminal No.
3) from the ECM (terminal No. 42) or PCM (termi-
nal No. 46). The ground terminal (terminal No. 2)
is grounded with ECM (terminal No. 49) or PCM
(terminal No. 57).
• A voltage that is proportional to the intake mani-
fold pressure is sent to the ECM (terminal No. 92)
or PCM (terminal No. 91) from the manifold abso-
lute pressure sensor output terminal (terminal No.
1).
.
TECHNICAL DESCRIPTION
• The manifold absolute pressure sensor outputs a
voltage which corresponds to the intake manifold
pressure.
• The ECM <M/T> or PCM <A/T> checks whether
this voltage is within a specified range.
.
DESCRIPTIONS OF MONITOR METHODS
Manifold absolute pressure sensor output voltage is
out of specified range.
.
MONITOR EXECUTION
Continuous
.
MONITOR EXECUTION CONDITIONS (Other
monitor and Sensor)
Other Monitor (There is no temporary DTC stored
in memory for the item monitored below)
• Not applicable
Sensor (The sensor below is determined to be
normal)
• Engine coolant temperature sensor
• Throttle position sensor
.
AK103739
CONNECTOR: B-04
MANIFOLD
ABSOLUTE
PRESSURE
SENSOR
AD
B-04(B)
AK300244
CONNECTORS: C-55, C-59 <A/T>
AD
PCM
C-55 (GR)
C-59 (GR)
AK300091
CONNECTORS: C-58, C-62 <M/T>
ECM
AD
C-58 (GR)
C-62 (GR)
MULTIPORT FUEL INJECTION (MFI) DIAGNOSIS
TSB Revision
MULTIPORT FUEL INJECTION (MFI) <3.0L>
13B-70
DTC SET CONDITIONS
Logic Flow Chart
.
Check Conditions
• 8 minutes or more have passed since the starting
sequence was completed, when the engine cool-
ant temperature at engine start is 0
°C (32°F) or
lower.
• Throttle position sensor output voltage is higher
than 1.25 volts.
Judgement Criteria
• Manifold absolute pressure is 5.0 kPa (1.5 in.Hg)
or lower for 2 seconds.
.
OBD-ll DRIVE CYCLE PATTERN
Refer to Diagnostic Function
− OBD-ll Drive Cycle −
Procedure 6
.
.
TROUBLESHOOTING HINTS (The most likely
causes for this code to be set are: )
• Manifold absolute pressure sensor failed.
• Open or shorted manifold absolute pressure sen-
sor circuit, harness damage or connector dam-
age.
• ECM <M/T> failed.
• PCM <M/T> failed.
YES
YES
YES
YES
NO
NO
NO
NO
MONITORING
CONDITIONS
PRESSURE < 4.9kPa (1.4in.Hg)
PRESSURE > 117kPa (34.6in.Hg)
CONTINUOUS
FAILURE FOR 2secs
MALFUNCTION
END
GOOD
START
AK301416
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