Mitsubishi Outlander GS45X. Manual — part 804
MULTIPORT FUEL INJECTION (MFI) DIAGNOSIS
TSB Revision
MULTIPORT FUEL INJECTION (MFI) <3.0L ENGINE>
13B-149
STEP 3. Check for the continuity between the mass airflow
sensor connector A-07 and the ECM connector B-11.
(1) Disconnect the mass airflow sensor connector A-07 and the
ECM connector B-11.
(2) Check for the continuity between the mass airflow sensor
connector A-07 (terminal No. 4) and the ECM connector
B-11 (terminal No. 88).
• Should be less than 2 ohms.
Q: Does continuity exist?
YES : Go to Step 4.
NO : Repair it. Then go to Step 5.
STEP 4. Replace the mass airflow sensor.
(1) Replace the mass airflow sensor.
(2) Carry out a test drive with the drive cycle pattern. Refer to
Diagnostic Function
− OBD-II Drive Cycle − Pattern 22
(3) Check the diagnostic trouble code (DTC).
Q: Is DTC P0102 set?
YES : Replace the ECM. When the ECM is replaced,
register the ID code. Refer to GROUP 42B, Diagnosis
− ID Codes Registration Judgment Table <Vehicles
with KOS>
P.42B-15
or GROUP 42C, Diagnosis
− ID
Codes Registration Judgment Table <Vehicles with
WCM>
P.42C-10
. Then go to Step 5.
NO : The inspection is complete.
STEP 5. 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 − Pattern 22
(2) Check the diagnostic trouble code (DTC).
Q: Is DTC P0103 set?
YES : Retry the troubleshooting.
NO : The inspection is complete.
AK700550
82 81 80 79 78 77 76 75 74 73 72 71
94 93 92 91 90 89 88 87 86 85 84 83
99 98 97 96 95
100
101
102
103
104
105
106
112
113
114
109 108
107
110
111
115
116
117
118
2
1
3
4
AB
A-07 harness connector:
component side
B-11 harness connector:
component side
MULTIPORT FUEL INJECTION (MFI) DIAGNOSIS
TSB Revision
MULTIPORT FUEL INJECTION (MFI) <3.0L ENGINE>
13B-150
DTC P0106: Manifold Absolute Pressure Circuit Range/Performance Problem
.
AK900131
1
2
3 4 5 6 7 8 9 10 11 12 13 14 15 16
17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32
33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48
49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64
1 2 3
AD
ENGINE
CONTROL
MODULE
5 V
MANIFOLD ABSOLUTE
PRESSURE SENSOR
BLUE
YELLO
W
-BLA
CK
GRA
Y
-BLUE
1
2
3
MANIFOLD ABSOLUTE PRESSURE SENSOR CIRCUIT
44
46
45
B-10
B-105
AK900132
AD
B-105 (B)
Connector: B-105
Manifold absolute
pressure sensor
AK700401AB
ECM
B-10 (GR)
Connector: B-10
MULTIPORT FUEL INJECTION (MFI) DIAGNOSIS
TSB Revision
MULTIPORT FUEL INJECTION (MFI) <3.0L ENGINE>
13B-151
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. 44). The ground
terminal (terminal No. 2) is grounded with ECM
(terminal No. 46).
• A voltage that is proportional to the intake mani-
fold pressure is sent to the ECM (terminal No. 45)
from the manifold absolute pressure sensor out-
put terminal (terminal No. 1).
.
TECHNICAL DESCRIPTION
• The manifold absolute pressure sensor outputs a
voltage which corresponds to the intake manifold
pressure.
• The ECM 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
• Mass airflow sensor
• Intake air temperature sensor
• Barometric pressure sensor
.
MULTIPORT FUEL INJECTION (MFI) DIAGNOSIS
TSB Revision
MULTIPORT FUEL INJECTION (MFI) <3.0L ENGINE>
13B-152
DTC SET CONDITIONS <Range/Performance problem - low input>
Logic Flow Chart
.
Check Conditions
• 8 minutes or more have passed since the engine
starting sequence was completed, when the
engine coolant 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 Criterion
• Manifold absolute pressure is 45 kPa (13.3 in.Hg)
or lower for 2 seconds.
.
Start
Yes
Yes
Yes
No
No
No
Pressure <
45kPa (13.3in.Hg)
Continuous
failure for 2secs
Malfunction
End
Good
Monitoring
conditions
AK604312
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