Mitsubishi Colt Ralliart. Manual - part 17

TROUBLESHOOTING

MULTIPORT FUEL INJECTION (MPI) <4A9>

13A-22

INSPECTION PROCEDURE FOR 
DIAGNOSIS CODES

Code No. P0011: Variable Valve Timing System

FUNCTION

• The engine-ECU <M/T> or engine-CVT-ECU 

<CVT> checks whether the variable valve timing 
system has malfunction.

TROUBLE JUDGMENT

Check Conditions

• Engine is running.

• Oil feeder control valve operation: OFF

• The oil feeder control valve is normal <M/T>.

• Camshaft position sensor and crank angle sensor 

are normal <M/T>.

Judgment Criteria

• For 10 seconds, the phase angle of the intake 

camshaft is 15

° or more.

• For 4 seconds, the electrical current of the oil 

feeder control valve monitor is abnormal <CVT>.

Check Condition

• Ignition switch is in "ON" position <M/T>.

Judgment Criterion

• Variable Valve Timing monitor current is abnor-

mal <M/T>.

Check Condition

• Ignition switch is in "ON" position <M/T>.

Judgment Criteria

• The battery voltage is 9.0 V or more <M/T>.

• Variable Valve Timing monitor current is abnor-

mal <M/T>.

Check Condition

• Ignition switch is in "ON" position <M/T>.

Judgment Criteria

• The battery voltage is 9.0 V or more <M/T>.

• The oil feeder control valve is in ON position 

<M/T>.

• Variable Valve Timing monitor current is abnor-

mal <M/T>.

POSSIBLE CAUSES

• Failed oil feeder control valve

• Oil passage of variable valve timing control sys-

tem clogged

• Variable valve timing sprocket operation system 

stuck

• Failed engine-ECU <M/T> or engine-CVT-ECU 

<CVT>

DIAGNOSIS PROCEDURE

STEP 1. Check oil feeder control valve

• Check oil feeder control valve (Refer to 

P.13A-365

).

Q: Is the check result normal?

YES : 

Go to Step 2 .

NO : 

Replace oil feeder control valve.

STEP 2. Check for oil passage of variable valve 
timing control system clogged

Q: Is the check result normal?

YES : 

Go to Step 3 .

NO : 

Repair.

STEP 3. Check for variable valve timing sprocket 
operation system stuck

Q: Is the check result normal?

YES : 

Go to Step 4 .

NO : 

Repair.

STEP 4. M.U.T.-III diagnosis code

• Reconfirmation of diagnosis code.

Q: Is the check result normal?

YES : 

Replace engine-ECU <M/T> or 

engine-CVT-ECU <CVT>.

NO : 

Intermittent malfunction (Refer to Group 00 
− How to Use Troubleshooting/Inspection 
Service Points 

− How to Cope with 

Intermittent Malfunctions 

P.00-13

).

Main

Index

Group

TOC

TROUBLESHOOTING

MULTIPORT FUEL INJECTION (MPI) <4A9>

13A-23

Code No. P0105: Manifold Absolute Pressure Sensor System

OPERATION

• A power voltage of 5 V is applied to the manifold 

absolute pressure sensor power terminal (termi-
nal No. 2) from the engine-ECU <M/T> or 
engine-CVT-ECU <CVT> (terminal No. 32) and 
earthed to the engine-ECU <M/T> or 
engine-CVT-ECU <CVT> (terminal No. 33) from 
the manifold absolute pressure sensor (terminal 
No. 4).

• The sensor signal is inputted to the engine-ECU 

<M/T> or engine-CVT-ECU <CVT> (terminal No. 
17) from the manifold absolute pressure sensor 
output terminal (terminal No. 1).

FUNCTION

• The manifold absolute pressure sensor converts 

the manifold absolute pressure into a voltage sig-
nal and inputs the signal to the engine-ECU 
<M/T> or engine-CVT-ECU <CVT>.

• In response to the signal, the engine-ECU <M/T> 

or engine-CVT-ECU <CVT> corrects the fuel 
injection amount, etc.

AK402676

1

2

3 4

19

21

20

18

17

16

15

14

1213

11

8 9

L

10

37
52 53 54 555657585960616263646566

38 39 404142434445464748495051

22 23 24 252627282930313233343536

7

5

3

1

6

4

2

AC

Engine-ECU <M/T> or
engine-CVT-ECU <CVT>

5 V

Manifold absolute
pressure sensor

BR-W

W-L

Y

2

1

4

Manifold Absolute Pressure Sensor Circuit

32

33

17

A-114

A-106

Wire colour code
B: Black  LG: Light green  G: Green  L: Blue  W: White  Y: Yellow  SB: Sky blue  BR: Brown  O: Orange  GR: Gray
R: Red  P: Pink  V: Violet  Pu: Purple

Main

Index

Group

TOC

TROUBLESHOOTING

MULTIPORT FUEL INJECTION (MPI) <4A9>

13A-24

TROUBLE JUDGMENT

Check Condition

• 2 seconds later after the ignition switch has been 

in ON position or the engine has started up

Judgment Criterion

• The sensor output voltage is 4.7 V <M/T> or 4.5 

V <CVT> or more (barometric pressure above 
114 kPa or equivalent) for 4 seconds.

Check Conditions

• 2 seconds later after the ignition switch has been 

in ON position or the engine has started up.

• State of vehicle stop or throttle position sensor 

(main) output voltage is 1.3 V or more.

Judgment Criterion

• The sensor output voltage is 0.2 V or less (baro-

metric pressure below 5 kPa or equivalent) for 4 
seconds.

PROBABLE CAUSES

• Failed manifold absolute pressure sensor

• Open/short circuit in manifold absolute pressure 

sensor circuit or loose connector contact

• Failed engine-ECU <M/T> or engine-CVT-ECU 

<CVT>

DIAGNOSIS PROCEDURE

STEP 1. M.U.T.-III data list

• Refer to Data List Reference Table 

P.13A-331

.

a. Item 32: Manifold absolute pressure sensor

Q: Is the check result normal?

YES : 

Intermittent malfunction (Refer to GROUP 

00 

− How to Use 

Troubleshooting/Inspection Service Points 

− 

How to Cope with Intermittent Malfunctions 

P.00-13

).

NO : 

Go to Step 2 .

STEP 2. Connector check: A-106 manifold 
absolute pressure sensor connector

Q: Is the check result normal?

YES : 

Go to Step 3 .

NO : 

Repair or replace the connector.

STEP 3. Perform voltage measurement at A-106 
manifold absolute pressure sensor connector.

• Disconnect and measure at harness side.

• Ignition switch: ON

• Voltage between terminal No. 2 and earth.

OK: 4.9 

− 5.1 V

Q: Is the check result normal?

YES : 

Go to Step 9 . 

NO : 

Go to Step 4 . 

AK402005

4

3

2 1

AC

A-106

Connector: A-106

A-106 Harness side
connector

AK402005

4

3

2 1

AC

A-106

Connector: A-106

A-106 Harness side
connector

Main

Index

Group

TOC

TROUBLESHOOTING

MULTIPORT FUEL INJECTION (MPI) <4A9>

13A-25

STEP 4. Perform voltage measurement at A-114 
engine-ECU connector or engine-CVT-ECU 
connector.

• Disconnect engine-ECU <M/T> or 

engine-CVT-ECU <CVT> connector, and connect 
special tool power plant ECU check harness 
(MB991987), and then measure the voltage on 
the check connector.

• Ignition switch: ON

• Voltage between terminal No. 32 and earth.

OK: 4.9 

− 5.1 V

Q: Is the check result normal?

YES : 

Go to Step 5 .

NO : 

Go to Step 6 .

STEP 5. Connector check: A-114 engine-ECU 
connector or engine-CVT-ECU connector

Q: Is the check result normal?

YES : 

Check and repair harness between A-106 

(terminal No. 2) manifold absolute pressure 
sensor connector and A-114 (terminal No. 
32) engine-ECU connector or 
engine-CVT-ECU connector.

• Check power supply line for open 

circuit.

NO : 

Repair or replace the connector.

AK402745

6

4

2

5

3

1

9

7

8

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

65

66

L

AE

A-114

Connector: 

A-114

Engine-ECU <M/T> or
engine-CVT-ECU <CVT>

Battery

A-114 Special tool power plant ECU check 
harness

AK402745

6

4

2

5

3

1

9

7

8

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

65

66

L

AD

A-114

Connector: 

A-114

Harness side connector

Engine-ECU <M/T> or
engine-CVT-ECU <CVT>

Battery

AK402005

4

3

2 1

AC

A-106

Connector: A-106

A-106 Harness side
connector

Main

Index

Group

TOC