Mitsubishi Lancer Evolution IX. Manual — part 451
TROUBLESHOOTING
MULTIPORT FUEL INJECTION (MPI)
13A-279
Inspection Procedure 11: Engine does not Revole Up
COMMENTS ON TROUBLE SYMPTOM
• Failure is possibly caused by failed fuel system,
ignition system or other faults.
PROBABLE CAUSES
• Failed ignition system
• Failed fuel system
• Timing belt out of place
• Failed engine-ECU
DIAGNOSIS PROCEDURE
STEP 1. M.U.T.-II/III diagnosis code
Q: Diagnosis code set?
YES :
Inspection chart for diagnosis code (Refer
to
NO :
Go to Step 2 .
STEP 2. Check timing marks of timing belt.
Q: Is the check result normal?
YES :
Go to Step 3 .
NO :
Align match marks.
STEP 3. Connector check: B-103 and B-114
ignition coil connectors
Q: Is the check result normal?
YES :
Go to Step 4 .
NO :
Repair or replace the connector.
STEP 4. Check ignition coil spark.
Q: Is the check result normal?
YES :
Go to Step 9 .
NO :
Go to Step 5 .
STEP 5. Check spark plug.
Q: Is the check result normal?
YES :
Go to Step 6 .
NO :
Replace the spark plug.
STEP 6. 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 7 .
NO :
Replace the spark plug cable.
STEP 7. Check ignition coil itself.
• Check ignition coil itself (Refer to GROUP 16 −
Ignition System
Q: Is the check result normal?
YES :
Go to Step 8 .
NO :
Replace the ignition coil.
AK305047
1
2
3
Connector : B-103, B-114
B-114(GR)
B-103(GR)
AB
Harness side
connector
TROUBLESHOOTING
MULTIPORT FUEL INJECTION (MPI)
13A-280
STEP 8. Check harness between ignition coil
connector terminal No. 2 of each cylinder and
body earth.
• Check earthing line for open circuit or damage.
Q: Is the check result normal?
YES :
Check and repair harness between ignition
coil connector terminal No. 3 of each
cylinder and C-121 engine-ECU connector.
• Check signal line for open/short
circuit and damage.
NO :
Repair the damaged harness wire.
STEP 9. Fuel pressure measurement.
• Fuel pressure measurement (Refer to
).
Q: Is the check result normal?
YES :
Replace the engine-ECU.
NO :
Repair.
AK305047
1
2
3
Connector : B-103, B-114
B-114(GR)
B-103(GR)
AB
Harness side
connector
AK501995
2
3
4
5
6
7
8
9
11
12
13
14
15
16
17
18
19
20
30
21
22
23
24
25
26
27
28
29
31
32
33
34
35
1
10
AB
Connector: C-121
C-121 (GR)
C-121 (GR)
Harness side connector
<L. H. drive vehicles>
<R. H. drive vehicles>
TROUBLESHOOTING
MULTIPORT FUEL INJECTION (MPI)
13A-281
Inspection Procedure 12: Hesitation, Sag,Poor Acceleration, Stumble or Surge
COMMENTS ON TROUBLE SYMPTOM
• Failure is possibly caused by failed ignition sys-
tem, improper air-fuel ratio, improper compres-
sion pressure or other faults.
PROBABLE CAUSES
• Failed air-fuel ratio control system
• Failed ignition system
• Failed fuel system
• Failed intake and exhaust system
• Failed emission control system
• Failed turbocharger system
• Throttle valve fouled
• Improper compression pressure
• Failed engine-ECU
DIAGNOSIS PROCEDURE
STEP 1. M.U.T.-II/III diagnosis 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 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 3. M.U.T.-II/III data list
• Refer to Data List Reference Table
.
a. Item No. 13: Intake air temperature sensor
b. Item No. 14: Throttle position sensor
c. Item No. 21: Engine coolant temperature sen-
sor
d. Item No. 25: Barometric pressure sensor
Q: Are the check results normal?
YES :
Go to Step 4 .
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 4. 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 5 .
NO :
Replace the purge control solenoid valve.
STEP 5. Check EGR control solenoid valve itself.
• Check EGR control solenoid valve itself (Refer to
GROUP 17
− Emission Control System −
Exhaust Gas Recirculation (EGR) Sys-
tem
Q: Is the check result normal?
YES :
Go to Step 6 .
NO :
Replace the EGR control solenoid valve.
STEP 6. Check EGR valve itself.
• Check EGR valve itself (Refer to GROUP 17 −
Emission Control System
− Exhaust Gas Recir-
culation (EGR) System
).
Q: Is the check result normal?
YES :
Go to Step 7 .
NO :
Replace the EGR valve.
STEP 7. M.U.T.-II/III data list
• Refer to Data List Reference Table
.
a. Item No. 11: Oxygen sensor (front)
Q: Is the check result normal?
YES :
Go to Step 8 .
NO :
Check oxygen sensor (front) system (Refer
to Code No. P0130
).
TROUBLESHOOTING
MULTIPORT FUEL INJECTION (MPI)
13A-282
STEP 8. Connector check: B-103 and B-114
ignition coil connectors
Q: Is the check result normal?
YES :
Go to Step 9 .
NO :
Repair or replace the connector.
STEP 9. Check ignition coil spark.
Q: Is the check result normal?
YES :
Go to Step 14 .
NO :
Go to Step 10 .
STEP 10. Check spark plug.
Q: Is the check result normal?
YES :
Go to Step 11 .
NO :
Replace the spark plug.
STEP 11. 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 12 .
NO :
Replace the spark plug cable.
STEP 12. Check ignition coil itself.
• Check ignition coil itself (Refer to GROUP 16 −
Ignition System
Q: Is the check result normal?
YES :
Go to Step 13 .
NO :
Replace the ignition coil.
STEP 13. 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-121 engine-ECU connector.
• Check signal line for open or short
circuit or damage.
NO :
Repair the damaged harness wire.
AK305047
1
2
3
Connector : B-103, B-114
B-114(GR)
B-103(GR)
AB
Harness side
connector
AK305047
1
2
3
Connector : B-103, B-114
B-114(GR)
B-103(GR)
AB
Harness side
connector
AK501995
2
3
4
5
6
7
8
9
11
12
13
14
15
16
17
18
19
20
30
21
22
23
24
25
26
27
28
29
31
32
33
34
35
1
10
AB
Connector: C-121
C-121 (GR)
C-121 (GR)
Harness side connector
<L. H. drive vehicles>
<R. H. drive vehicles>
Нет комментариевНе стесняйтесь поделиться с нами вашим ценным мнением.
Текст