Mitsubishi Outlander (2003+). Manual — part 84
TROUBLESHOOTING
MULTIPORT FUEL INJECTION (MFI)
13A-199
STEP 14: Connector check: C-303 ignition switch
connector
Q: Is the check result normal?
YES :
Check intermediate connectors A-14, C-
116, C-203 and C-205, and repair if
necessary. Check and repair harness
between C-303 (terminal No. 2) ignition
switch connector and (terminal No. 1)
affected cylinders ignition coil connector.
Check power supply line for
open/short circuit.
NO :
Repair.
STEP 15: Check ignition coil spark.
Q: Is the check result normal?
YES :
Go to Step 16 .
NO :
Check intermediate connectors A-14, C-116,
C-203 and C-205, and repair if necessary.
Check and repair harness between C-303
(terminal No. 2) ignition switch connector
and (terminal No. 1) affected cylinder’s
ignition coil connector.
Check power supply line for damage.
STEP 16: Replace engine-ECU
After replacing the engine-ECU, re-check the
trouble symptoms.
Q: Does trouble symptom persist?
YES :
Check for foreign matters (water, kerosene,
etc.) in fuel and replace if necessary.
NO :
Check end.
Inspection Procedure 7: Starting Impossible (Initial Combustion But no Complete Combustion),
Improper Starting (Long time to Start)
COMMENT ON TROUBLE SYMPTOM
Failure is possibly caused by poor ignition, incor-
rect air-fuel ratio at cranking, improper fuel pres-
sure or other faults.
PROBABLE CAUSE
Failed battery
Failed ignition system
Failed fuel system
Air-fuel ratio control
Failed idle speed control system
Failed intake system
Failed exhaust gas cleaning system
Throttle valve fouled around
Timing belt not in place
Compression pressure improper
Failed engine-ECU
1
2
3
4
5
6
AK300304
CONNECTOR: C-303
C-303
Harness side
connector
AB
AK300308
1
2
3
AB
Harness side
connector
B-111 (GR)
B-110 (GR)
Connector: B-110, B-111
1
2
3
4
5
6
AK300304
CONNECTOR: C-303
C-303
Harness side
connector
AB
AK300308
1
2
3
AB
Harness side
connector
B-111 (GR)
B-110 (GR)
Connector: B-110, B-111
TROUBLESHOOTING
MULTIPORT FUEL INJECTION (MFI)
13A-200
DIAGNOSIS PROCEDURE
STEP 1: Check battery condition.
Q: Have the battery terminal been disconnected?
YES :
After warm-up engine, idle for about 10
minutes.
NO :
Go to Step 2 .
STEP 2: Check battery voltage.
Measure battery voltage at cranking.
OK: 8 V or higher
Q: Is the check result normal?
YES :
Go to Step 3 .
NO :
Check battery (Refer to GROUP 54
-
Battery
-
On-vehicle Service
-
Battery Test
STEP 3: MUT-II self-diag code
Q: Diagnosis code set?
YES :
Inspection chart for diagnosis codes (Refer
)
NO :
Go to Step 4 .
STEP 4: MUT-II data list
Refer to Data list reference table
a. Item 13: Intake air temperature sensor
b. Item 21: Engine coolant temperature sensor
c. Item 25: Barometric pressure sensor
Q: Are the check results normal?
YES :
Go to Step 5 .
NO :
Perform the diagnosis code classified check
procedure for the sensor that has shown an
abnormal data value (Refer to Inspection
Chart for Diagnosis Codes
STEP 5: Check start ability.
With depressing the accelerator pedal slightly,
and start the engine.
Q: Is the start ability good?
YES :
Go to Step 6 .
NO :
Go to Step 7 .
STEP 6: Check idle speed control servo for
operating sound.
Check idle speed control servo for operating
sound (Refer to
).
Q: Is the check result normal?
YES :
Clean throttle body (throttle valve portion)
(Refer to
NO :
Check idle speed control servo system
(Refer to Code No. P0505
STEP 7: MUT-II actuator test
Item 07: Fuel pump
OK: Operating sound of fuel pump can be
heard.
Q: Is the check result normal?
YES :
Go to Step 8 .
NO :
Check fuel pump system (Refer to
Inspection Procedure 24
STEP 8: Check air intake from intake hose and
inlet manifold.
Q: Is the check result normal?
YES :
Go to Step 9 .
NO :
Repair.
STEP 9: Check injector for operating sound.
Check injector for operating sound at engine
cranking (Refer to
Q: Can operating sound be heard?
YES :
Go to Step 10 .
NO :
Check the injector system of the defective
cylinder.
(Refer to Code No. P0201: No.1 injector system
(Refer to Code No. P0202: No.2 injector system
(Refer to Code No. P0203: No.3 injector system
(Refer to Code No. P0204: No.4 injector system
STEP 10. Check timing marks of timing belt.
Q: Is the check result normal?
YES :
Go to Step 11 .
NO :
Align timing marks.
TROUBLESHOOTING
MULTIPORT FUEL INJECTION (MFI)
13A-201
STEP 11: Measure voltage at C-134 engine-ECU
connector.
Measure engine-ECU terminal voltage.
Ignition switch: ON
Voltage between terminal No. 13 and earth, also
between terminal No. 26 and earth.
OK: 0.5 V or less
Q: Is the check result normal?
YES :
Go to Step 13 .
NO :
Go to Step 12 .
STEP 12: Connector check: C-134 engine-ECU
connector
Q: Is the check result normal?
YES :
Check and repair harness between C-134
(terminal No. 13 and No. 26) engine-ECU
connector and body earth.
Check earthing line for open circuit
and damage.
NO :
Repair.
STEP 13: Connector check: B110 and B-111
ignition coil connectors
Q: Is the check result normal?
YES :
Go to Step 14 .
NO :
Repair.
STEP 14: Check ignition coil spark.
Q: Is the check result normal?
YES :
Go to Step 19 .
NO :
Go to Step 15 .
STEP 15: Check spark plug.
Q: Is the check result normal?
YES :
Go to Step 16 .
NO :
Replace spark plug.
STEP 16: Check spark plug cable itself.
Check spark plug cable itself (Refer to GROUP
16
-
Ignition System
-
On-vehicle Service
Q: Is the check result normal?
YES :
Go to Step 17 .
NO :
Replace spark plug cable.
STEP 17: Check ignition coil itself.
Check ignition coil itself (Refer to GROUP 16
-
Ignition System
-
On-vehicle Service
Q: Is the check result normal?
YES :
Go to Step 18 .
NO :
Replace ignition coil.
AK300257
1
14
4
19
5
22
6
17
8
15
9
18
7
20
16
2
13 12
23
24
25
26
21
3
10
11
AB
CONNECTOR: C-134
C-134
Harness side connector
AK300257
1
14
4
19
5
22
6
17
8
15
9
18
7
20
16
2
13 12
23
24
25
26
21
3
10
11
AB
CONNECTOR: C-134
C-134
Harness side connector
AK300308
1
2
3
AB
Harness side
connector
B-111 (GR)
B-110 (GR)
Connector: B-110, B-111
TROUBLESHOOTING
MULTIPORT FUEL INJECTION (MFI)
13A-202
STEP 18: Check harness between terminal No. 2
of each cylinder’s ignition coil connector and
vehicle body earth.
Check earthing line for open circuit and damage.
Q: Is the check result normal?
YES :
Check and repair harness between terminal
No. 3 of each cylinder’s ignition coil
connector and C-134 engine-ECU
connector.
Check signal line for open/short
circuit and damage.
NO :
Repair.
STEP 19: Check spray condition of injector.
Check each injector for spray condition (Refer to
).
Q: Is the check result normal?
YES :
Go to Step 20 .
NO :
Replace injector.
STEP 20: Check compression pressure.
Check compression pressure (Refer to GROUP
11A
-
On-vehicle Service
).
Q: Is the check result normal?
YES :
Go to Step 21 .
NO :
Repair.
STEP 21: Check EGR control solenoid valve
itself.
Check EGR control solenoid valve itself [Refer to
GROUP 17
-
Emission Control System
-
Exhaust Gas Recirculation (EGR) System
Q: Is the check result normal?
YES :
Go to Step 22 .
NO :
Replace EGR control solenoid valve.
STEP 22: Check EGR valve itself.
Check EGR valve itself [Refer to GROUP 17
-
Emission Control System
-
Exhaust Gas Recir-
Q: Is the check result normal?
YES :
Go to Step 23 .
NO :
Replace EGR valve.
STEP 23: Replace engine-ECU.
After replacing the engine-ECU, re-check the
trouble symptoms.
Q: Does trouble symptom persist?
YES :
Check for foreign matters (water, kerosene,
etc.) in fuel and replace if necessary.
NO :
Check end.
Inspection Procedure 8: Unstable idling (Rough idling, hunting), Improper idling speed (Too high or
too low), Engine stalls during idling (Die out)
COMMENT ON TROUBLE SYMPTOM
Probable causes can be widely found in ignition
system, air-fuel ratio control system, idle speed
control system, fuel system, etc. A sudden
engine stall is possibly caused by poor connector
contact.
PROBABLE CAUSE
Failed ignition system
Failed fuel system
Failed air-fuel ratio control system
Failed idle speed control system
Failed intake/exhaust system
AK300308
1
2
3
AB
Harness side
connector
B-111 (GR)
B-110 (GR)
Connector: B-110, B-111
AK300257
1
14
4
19
5
22
6
17
8
15
9
18
7
20
16
2
13 12
23
24
25
26
21
3
10
11
AB
CONNECTOR: C-134
C-134
Harness side connector
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