Mitsubishi Lancer Evolution VI. Manual - part 40

 

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Mitsubishi Lancer Evolution VI. Manual - part 40

 

 

MPI  – 

Troubleshooting

13-48

INSPECTION PROCEDURE 39

MUT-

II

: Check if uncomplete combustion occurs.

MUT-

II

 Self-Diag code

Are diagnosis codes displayed?

Yes

Refer to P.13-8, INSPECTION CHART FOR DIAGNOSIS CODES.

No

MUT-

II

 Actuator test

07 Fuel pump (Refer to P.13-61.)

NG

Check the fuel pump system. 
(Refer to P.13-36, INSPECTION PROCEDURE 25.)

OK

MUT-

II

 Data list

21 Engine coolant temperature sensor (Refer to P.13-57.)

NG

Check the engine coolant temperature sensor system.
(Refer to P.13-10, INSPECTION PROCEDURES FOR DIAGNOSIS
CODE 21.)

OK

MUT-

II

 Data list

18 Ignition switch-ST (Refer to P.13-57.)

NG

Check the ignition switch-ST system. 
(Refer to P.13-38, INSPECTION PROCEDURE 27.)

INSPECTION PROCEDURE 40

Check if hunting occurs.

Clean the throttle body.

Check and adjust the fixed SAS. (Refer to P.13-30.)*

Check trouble symptom.

NG

Inspect the intake of air into the air intake system

D

Broken intake manifold gasket

D

Broken air intake hose

D

Broken vacuum hose

D

Positive crankcase ventilation valve does not operate.

NOTE
*:

Refer to Workshop Manual for LANCER EVOLUTION-IV and EVOLUTION-V (Pub. No. S9806CNCP9).

MPI  – 

Troubleshooting

13-49

INSPECTION PROCEDURE 41

MUT-

II

: Check if idling speed is unstable.

OK

MUT-

II

 Data list

45 ISC servo position (Refer to P.13-60.)

NG

Adjust the basic idle speed. (Refer to P.13-30.)*

MUT-

II

 Data list

28 A/C switch (Refer to P.13-58.)

NG

Check the A/C switch and A/C relay system. 
(Refer to P.13-39. INSPECTION PROCEDURE 29.)

OK

OK

MUT-

II

 Data list

27 Power steering fluid pressure switch (Refer to P.13-58)

NG

Check the power steering fluid pressure switch system. 
(Refer to P.13-39, INSPECTION PROCEDURE 28.)

1. Inspect the intake of air into the air intake system.

D

Broken intake manifold gasket

D

Broken vacuum hose

D

PCV valve does not operate.

D

Broken air intake hose

2. Check the injector for clog.

OK

OK

MUT-

II

 Data list

11 Oxygen sensor

OK: Changes between 0 –400 mV and 600 –1,000 mV during

idling

NG

Check the fuel pressure. (Refer to P.13-30.)*

OK

MUT-

II

 Data list

11 Oxygen sensor

OK: 600–1,000 mV during sudden racing

NG

Check the oxygen sensor system. (Refer to P.13-42, INSPECTION
PROCEDURE 31.)

OK

MUT-

II

 Data list

21 Engine coolant temperature sensor (Refer to P.13-21.)

NG

Check the engine coolant temperature sensor system. 
(Refer to P.13-10, INSPECTION PROCEDURE FOR DIAGNOSIS
CODE 21.)

OK

MUT-

II

 Data list

25 Barometric pressure sensor (Refer to P.13-58.)

NG

Check the barometric pressure sensor system. (Refer to P.13-14,
INSPECTION PROCEDURE FOR DIAGNOSIS CODE 25.)

OK

MUT-

II

 Data list

13 Intake air temperature sensor (Refer to P.13-56.)

NG

Check the intake air temperature sensor system. (Refer to P.13-9,
INSPECTION PROCEDURE FOR DIAGNOSIS CODE 13.)

MUT-

II

 Data list

26 Idle position switch (Refer to P.13-58.)

NG

Check the idle position switch system.
(Refer to P.13-38, INSPECTION PROCEDURE 26.)

NOTE
*:

Refer to Workshop Manual for LANCER EVOLUTION-IV and EVOLUTION-V (Pub. No. S9806CNCP9).

MPI  – 

Troubleshooting

13-50

INSPECTION PROCEDURE 42

MUT-

II

: Engine stalling inspection when the engine is warmed up and idling.

OK

MUT-

II

 Data list

26 Idle position switch (Refer to P.13-58.)

NG

Check the idle position switch system.
(Refer to P.13-38, INSPECTION PROCEDURE 26.)

OK

MUT-

II

 Data list

13 Intake air temperature sensor (Refer to P.13-56.)

NG

Check the intake air temperature sensor system. (Refer to P.13-9,
INSPECTION PROCEDURE FOR DIAGNOSIS CODE 13.)

OK

MUT-

II

 Data list

25 Barometric pressure sensor (Refer to P.13-58.)

NG

Check the barometric pressure sensor system. (Refer to P.13-14,
INSPECTION PROCEDURE FOR DIAGNOSIS CODE 25.)

OK

MUT-

II

 Data list

21 Engine coolant temperature sensor (Refer to P.13-57.)

NG

Check the engine coolant temperature sensor system. 
(Refer to P.13-10, INSPECTION PROCEDURE FOR DIAGNOSIS
CODE 21.)

OK

MUT-

II

 Data list

11 Oxygen sensor

OK: 600– 1,000 mV during sudden racing

NG

Check the oxygen sensor system. (Refer to P.13-42, INSPECTION
PROCEDURE 31.)

OK

MUT-

II

 Data list

11 Oxygen sensor

OK: Changes between 0 – 400 mV and 600 – 1,000 mV during

idling

NG

Check the fuel pressure. (Refer to P.13-30.)*

OK

MUT-

II

 Data list

27 Power steering fluid pressure switch (Refer to P.13-58.)

NG

Check the power steering fluid pressure switch system.  
(Refer to P.13-39, INSPECTION PROCEDURE 28.)

OK

MUT-

II

 Data list

28 A/C switch (Refer to P.13-58.)

NG

Check the A/C switch and A/C relay system.  
(Refer to P.13-39, INSPECTION PROCEDURE 29.)

OK

MUT-

II

 Data list

45 ISC servo position (Refer to P.13-60.)

NG

Adjust the basic idle speed. (Refer to P.13-30.)*

1. Inspect the intake of air into the air intake system

D

Broken intake manifold gasket

D

Broken vacuum hose

D

PCV valve does not operate.

D

Broken air intake hose

2. Check the injector for clog.

NOTE
*:

Refer to Workshop Manual for LANCER EVOLUTION-IV and EVOLUTION-V (Pub. No. S9806CNCP9).

MPI  – 

Troubleshooting

13-51

INSPECTION PROCEDURE 43

MUT-

II

: Check if hesitation, sag, stumble or poor acceleration occurs.

OK

MUT-

II

 Data list

26 Idle position switch (Refer to P.13-58.)

NG

Check the idle position switch system.
(Refer to P.13-38, INSPECTION PROCEDURE 26.)

OK

MUT-

II

 Data list

13 Intake air temperature sensor (Refer to P.13-56.)

NG

Check the intake air temperature sensor system. (Refer to P.13-9,
INSPECTION PROCEDURE FOR DIAGNOSIS CODE 13.)

OK

MUT-

II

 Data list

25 Barometric pressure sensor (Refer to P.13-58.)

NG

Check the barometric pressure sensor system. (Refer to P.13-14,
INSPECTION PROCEDURE FOR DIAGNOSIS CODE 25.)

OK

MUT-

II

 Data list

21 Engine coolant temperature sensor (Refer to P.13-57.)

NG

Check the engine coolant temperature sensor system. 
(Refer to P.13-10, INSPECTION PROCEDURE FOR DIAGNOSIS
CODE 21.)

OK

MUT-

II

 Data list

14 Throttle position sensor (Refer to P.13-57.)

NG

Check the throttle position sensor system. (Refer to P.13-9, IN-
SPECTION PROCEDURE FOR DIAGNOSIS CODE 14.)

OK

MUT-

II

 Actuator test

12 Waste gate solenoid valve (Refer to P.13-61.)

NG

Check the waste gate solenoid valve system. 
(Refer to P.13-45, INSPECTION PROCEDURE 35.)

OK

MUT-

II

 Data list

11 Oxygen sensor

OK: Changes between 600 – 1,000 mV during sudden racing

NG

Check the oxygen sensor system. (Refer to P.13-42, INSPECTION
PROCEDURE 31.)

OK

MUT-

II

 Data list

11 Oxygen sensor

OK: Changes between 0 – 400 mV and 600 – 1,000 mV during

idling

NG

Check the fuel pressure. (Refer to P.13-30.)*

OK

MUT-

II

 Actuator test

09 Fuel pressure control valve (Refer to P.13-61.)

NG

Check the fuel pressure control valve system. 
(Refer to P.13-45, INSPECTION PROCEDURE 34.)

1. Inspect the intake of air into the air intake system

D

Broken intake manifold gasket

D

Broken vacuum hose

D

PCV valve does not operate.

D

Broken air intake hose

2. Check the injector for clog.

 NOTE
*:

Refer to Workshop Manual for LANCER EVOLUTION-IV and EVOLUTION-V (Pub. No. S9806CNCP9).

 

 

 

 

 

 

 

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