Mitsubishi Outlander (2003+). Manual — part 89
TROUBLESHOOTING
MULTIPORT FUEL INJECTION (MFI)
13A-219
STEP 5. 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
NO :
Replace spark plug cable.
STEP 6. 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 7 .
NO :
Replace ignition coil.
STEP 7. Check harness between ignition coil
connector terminal No. 2 of each cylinder and
body earth.
Check earthing line for open circuit and damage.
Q: Is the check result normal?
YES :
Check and repair harness between ignition
coil connector terminal No. 3 of each
cylinder and C-134 engine-ECU connector.
Check signal line for open circuit,
short circuit and damage.
NO :
Repair.
Inspection Procedure 16: Ignition Timing Offset
COMMENT ON TROUBLE SYMPTOM
Failure is possibly caused by failed crank angle
sensor, failed camshaft position sensor, improper
installed timing belt or other faults.
PROBABLE CAUSE
Failed crank angle sensor
Failed camshaft position sensor
Improperly installed timing belt
Failed engine-ECU
DIAGNOSIS PROCEDURE
STEP 1. MUT-II self-diag code
Q: Diagnosis code set?
YES :
Inspection chart for diagnosis code (Refer
to
).
NO :
Go to Step 2 .
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
TROUBLESHOOTING
MULTIPORT FUEL INJECTION (MFI)
13A-220
STEP 2. Measure output waveforms of crank
angle sensor and camshaft position sensor (Use
oscilloscope).
Crank Angle Sensor
Use special tool test harness (MB998478) to con-
nect B-29 crank angle sensor connector, and
measure at pick-up harness.
Engine: Idling
Transmission: Neutral
Voltage between terminal No. 2 and earth.
Camshaft Position Sensor
Use special tool test harness (MD991709) to con-
nect B-106 camshaft position sensor connector,
and measure at pick-up harness.
Engine: Idling
Transmission: Neutral
Voltage between terminal No. 2 and earth.
OK: Output waveform timings of both sen-
sors are the same as the check procedure
(Refer to
) using an oscilloscope.
Q: Is the check result normal?
YES :
Go to Step 3 .
NO :
Go to Step 4 .
STEP 3. Check the trouble symptoms.
Q: Does trouble symptom persist?
YES :
Replace engine-ECU.
NO :
Intermittent malfunction (Refer to GROUP
00
-
How to Use
Troubleshooting/Inspection Service Points
).
STEP 4. Check crank angle sensor and camshaft
position sensor mounted conditions.
Q: Is the check result normal?
YES :
Go to Step 5 .
NO :
Repair.
STEP 5. Check timing marks of timing belt.
Q: Is the check result normal?
YES :
Go to Step 6 .
NO :
Align timing marks.
STEP 6. Check crank angle sensor vane.
Q: Is the check result normal?
YES :
Go to Step 7 .
NO :
Replace crank angle sensor vane.
STEP 7. Check camshaft position sensing
cylinder.
Q: Is the check result normal?
YES :
Go to Step 8 .
NO :
Replace camshaft position sensing cylinder.
STEP 8. Replace crank angle sensor.
After replacing the crank angle sensor, re-check
the trouble symptoms.
Q: Does trouble symptom persist?
YES :
Go to Step 9 .
NO :
Check end.
AK300276
1
2
3
AB
Connector: B-29
B-29 (B)
Harness side
connector
Crank angle sensor
AK300279
1
2
3
Harness side
connector
B-106 (B)
AB
Connector: B-106
TROUBLESHOOTING
MULTIPORT FUEL INJECTION (MFI)
13A-221
STEP 9. Replace camshaft position sensor.
After replacing the camshaft position sensor, re-
check the trouble symptoms.
Q: Does trouble symptom persist?
YES :
Replace engine-ECU.
NO :
Intermittent malfunction (Refer to GROUP
00
-
How to Use
Troubleshooting/Inspection Service Points
).
Inspection Procedure 17: Run on (Dieseling)
COMMENT ON TROUBLE SYMPTOM
Failure is possibly caused by leakage from injec-
tor.
PROBABLE CAUSE
Failed injector
Failed engine-ECU
DIAGNOSIS PROCEDURE
STEP 1. Check injector for spray condition.
Check each injector for spray condition (Refer to
Q: Does trouble symptom persist?
YES :
Replace engine-ECU.
NO :
Replace injector.
Inspection Procedure 18: Odor, White Smoke, Black Smoke, and High-Concentration CO/HC during
Idling
COMMENT ON TROUBLE SYMPTOM
Failure is possibly caused by improper air-fuel
ratio, deteriorated catalyst, failed ignition system,
failed fuel system, failed compression pressure or
other faults.
PROBABLE CAUSE
Incorrect air/fuel ratio
Failed ignition system
Failed fuel system
Failed intake and exhaust system
Failed emission control system
Failed compression pressure
Failed catalytic converter
Failed engine-ECU
DIAGNOSIS PROCEDURE
STEP 1. MUT-II self-diag code
Q: Diagnosis code set?
YES :
Inspection chart for diagnosis code (Refer
to
NO :
Go to Step 2 .
STEP 2. Check injector for operating sound.
Check injector for operating sound (Refer to
Q: Can operating sound be heard?
YES :
Go to Step 3 .
NO :
Check the injector system of the defective
cylinder.
(Refer to
, Code P0201: No. 1 injector System) (Refer to
, Code P0202: No. 2 injector
System)
(Refer to
, Code P0203: No. 3 injector System) (Refer to
, Code P0204: No. 4
injector System)
STEP 3. Check ignition timing.
Check ignition timing. (Refer to GROUP 11A
-
On-vehicle Service
Q: Is the check result normal?
YES :
Go to Step 4 .
NO :
Check for offset ignition timing (Refer to
Inspection Procedure 16
).
TROUBLESHOOTING
MULTIPORT FUEL INJECTION (MFI)
13A-222
STEP 4. MUT-II Data List
Refer to Data list reference table
a. Item 12: Air flow sensor
b. Item 13: Intake air temperature sensor
c. Item 21: Engine coolant temperature sensor
d. 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 air intake from intake hose and
inlet manifold.
Q: Is the check result normal?
YES :
Go to Step 6 .
NO :
Repair.
STEP 6. Check for emission leakage from
exhaust manifold.
Q: Is the check result normal?
YES :
Go to Step 7 .
NO :
Repair.
STEP 7. Check throttle body (throttle valve
portion) for contamination.
Q: Is the check result normal?
YES :
Go to Step 8 .
NO :
Clean throttle body (throttle valve portion)
(Refer to
STEP 8. MUT-II data list
Refer to Data list reference table
a. Item 11: Oxygen sensor (front)
Q: Is the check result normal?
YES :
Go to Step 9 .
NO :
Check oxygen sensor (front) system (Refer
to Code No. P0130
STEP 9. Check Purge control solenoid valve
itself.
Check purge control solenoid valve itself (Refer
to GROUP 17
-
Emission Control System
-
Evaporative Emission Control System
).
Q: Is the check result normal?
YES :
Go to Step 10 .
NO :
Replace purge control solenoid valve.
STEP 10. 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 11 .
NO :
Replace EGR control solenoid valve.
STEP 11. 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 12 .
NO :
Replace EGR valve.
STEP 12. Measure fuel pressure.
Measure fuel pressure (Refer to
Q: Is the check result normal?
YES :
Go to Step 13 .
NO :
Repair.
STEP 13. Check positive crankcase ventilation
valve itself.
Check positive crankcase ventilation valve itself
(Refer to GROUP 17
-
Emission Control System
-
crankcase Emission Control System
Q: Is the check result normal?
YES :
Go to Step 14 .
NO :
Replace positive crankcase ventilation
valve.
STEP 14. Check spark plug.
Q: Is the check result normal?
YES :
Go to Step 15 .
NO :
Replace spark plug.
STEP 15. 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 16 .
NO :
Replace spark plug cable.
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