Mitsubishi Eclipse. Manual — part 140
MULTIPORT FUEL INJECTION (MFI) DIAGNOSIS
TSB Revision
MULTIPORT FUEL INJECTION (MFI) <2.4L>
13A-53
DTC P0106: Manifold Absolute Pressure Circuit Range/Performance Problem
AK301717
1 2 3
SK
Y BL
UE
GREEN-
YELL
O
W
BL
ACK
ENGINE CONTROL
MODULE (ECM) <M/T>
OR
POWERTRAIN CONTROL
MODULE (PCM) <A/T>
MANIFOLD
ABSOLUTE
PRESSURE
(MAP) SENSOR
B-04
(MU802723)
C-60 <M/T>
(MU803772)
C-54 <A/T>
(MU803781)
C-57 <A/T>
(MU803782)
73 <M/T>
91 <A/T>*2
81 <M/T>
46 <A/T>*1
92 <M/T>
57 <A/T>*1
NOTE
*1:PCM connector C-54 <A/T>
*2:PCM connector C-57 <A/T>
1
2
3
5V
82
78
81
80
89 90 91 92
79
87
71
74
73
72
76
75
77
85
88
83 84
86
98
78
71
88 89
76 77
72
79
91
73
80
74
75
81
92
8283
93
8485
94
8687
9596
90
97
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
Manifold Absolute Pressure Sensor Circuit
AK300106AB
CONNECTOR: B-04
B-04 (B)
MANIFOLD
ABSOLUTE
PRESSURE
SENSOR
AK300060
ECM
CONNECTOR: C-60 <M/T>
AE
C-60 (G)
MULTIPORT FUEL INJECTION (MFI) DIAGNOSIS
TSB Revision
MULTIPORT FUEL INJECTION (MFI) <2.4L>
13A-54
.
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. 81) <M/T> or PCM
(terminal No. 46) <A/T>. The ground terminal
(terminal No. 2) is grounded with the ECM (termi-
nal No. 92) <M/T> or PCM (terminal No. 57)
<A/T>.
• A voltage that is proportional to the intake mani-
fold pressure is sent to the ECM (terminal No. 73)
<M/T> or PCM (terminal No. 91) <A/T> from the
manifold absolute pressure sensor output termi-
nal (terminal No. 1).
.
TECHNICAL DESCRIPTION
• The manifold absolute pressure sensor outputs a
voltage which corresponds to the intake manifold
pressure.
• The ECM <M/T> PCM <A/T> checks whether this
voltage is within a specified range.
.
DESCRIPTIONS OF MONITOR METHODS
Compare load value with manifold absolute pressure
sensor output voltage.
.
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
.
AK300060
PCM
CONNECTORS: C-54, C-57 <A/T>
AI
C-57 (GR)
C-54 (GR)
MULTIPORT FUEL INJECTION (MFI) DIAGNOSIS
TSB Revision
MULTIPORT FUEL INJECTION (MFI) <2.4L>
13A-55
DTC SET CONDITIONS <Range/Performance problem-high input>
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.
• Engine speed is lower than 1,500 r/min.
• Throttle position sensor output voltage is lower
than 0.9 volt.
Judgement Criteria
• Manifold Absolute pressure is 89 kPa (26.3
in.Hg) or higher for 2 seconds.
.
START
YES
YES
YES
YES
NO
NO
NO
NO
MONITORING
CONDITIONS
PRESSURE > 89kPa (26.3in.Hg)
CONTINUOUS
FAILURE FOR 2secs
MALFUNCTION
END
GOOD
THROTTLE POSITION < =0.9V
AK301414
MULTIPORT FUEL INJECTION (MFI) DIAGNOSIS
TSB Revision
MULTIPORT FUEL INJECTION (MFI) <2.4L>
13A-56
DTC SET CONDITIONS <Range/Performance problem-low input>
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.
• Engine speed is higher than 1,500 r/min.
• Throttle position sensor output voltage is higher
than 3.5 volts.
Judgement Criteria
• Manifold Absolute pressure is 45 kPa (8.3 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.
• Harness damage or connector damage.
• ECM failed <M/T>.
• PCM failed <A/T>.
START
YES
YES
YES
YES
NO
NO
NO
NO
MONITORING
CONDITIONS
PRESSURE <
45kPa (8.3in.Hg)
CONTINUOUS
FAILURE FOR 2secs
MALFUNCTION
END
GOOD
THROTTLE POSITION > =3.5V
AK301415
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