Mitsubishi Lancer Evolution IX. Manual - part 422

TROUBLESHOOTING

MULTIPORT FUEL INJECTION (MPI)

13A-163

STEP 16. Check harness between B-117 (terminal 
No. 3) crank angle sensor connector and B-12X 
(terminal No. 4) engine control relay connector.

• Check power supply line for damage.

Q: Is the check result normal? 

YES : 

Go to Step 17 .

NO : 

Repair the damaged harness wire.

STEP 17. Connector check: C-119 and C-121 
engine-ECU connectors

Q: Is the check result normal? 

YES : 

Go to Step 18 .

NO : 

Repair or replace the connector.

AK305020

1

2

3

AB

Connector : B-117

Harness side 
connector

B-117(B)

Crank angle sensor

AK305003

2

1

3

4

AB

Connector : B-12X

B-12X

Harness side 
connector

Relay box’s
triangle marks

AK501998

65

43
50

42
49

41
48
60

61

64

46

47

58

59

67

68

45

56
66

52 51

44

53

62

54

63

57

55

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-119, C-121

C-119 (GR)

C-121 (GR)

C-119 (GR)

C-121 (GR)

C-121 Harness side connector

C-119 Harness side connector

<L. H. drive vehicles>

<R. H. drive vehicles>

TROUBLESHOOTING

MULTIPORT FUEL INJECTION (MPI)

13A-164

STEP 18. Check harness between B-117 (terminal 
No. 2) crank angle sensor connector and C-119 
(terminal No. 43) engine-ECU connector.

• Check output line for damage.

Q: Is the check result normal? 

YES : 

Go to Step 19 .

NO : 

Repair the damaged harness wire.

STEP 19. Check harness between B-117 (terminal 
No. 1) crank angle sensor connector and C-121 
(terminal No. 34) engine-ECU connector.

• Check earthing line for damage.

Q: Is the check result normal? 

YES : 

Go to Step 20 .

NO : 

Repair the damaged harness wire.

AK305020

1

2

3

AB

Connector : B-117

Harness side 
connector

B-117(B)

Crank angle sensor

AK501994

65

43
50

42
49

41
48
60

61

64

46

47

58

59

67

68

45

56
66

52 51

44

53

62

54

63

57

55

AB

Connector: C-119

C-119 (GR)

C-119 (GR)

Harness side connector

<L. H. drive vehicles>

<R. H. drive vehicles>

AK305020

1

2

3

AB

Connector : B-117

Harness side 
connector

B-117(B)

Crank angle sensor

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-165

STEP 20. Check the crankshaft sensing blade

Q: Is the check result normal? 

YES : 

Go to Step 21 .

NO : 

Replace the crankshaft sensing blade.

STEP 21: M.U.T.-II/III data list

• Refer to Data List Reference Table 

P.13A-372

.

a. Item No. 22: Crank angle sensor 

Q: Is the check result normal? 

YES : 

Intermittent malfunction (Refer to GROUP 

00 

− How to Use 

Troubleshooting/Inspection Service Points 

P.00-5

).

NO : 

Replace the crank angle sensor.

TROUBLESHOOTING

MULTIPORT FUEL INJECTION (MPI)

13A-166

Code No. P0340: Exhaust Camshaft Position Sensor System

OPERATION

• Power is supplied to the exhaust camshaft posi-

tion sensor (terminal No. 3) from the engine con-
trol relay (terminal No. 4) and is earthed to the 
engine-ECU (terminal No. 34) from the exhaust 

camshaft position sensor (terminal No. 1).

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

camshaft position sensor output terminal (termi-
nal No. 2) from the engine-ECU (terminal No. 50).

2

1

3

1

2

3

4

AK501813

65

43
50

42
49

41
48
60 61

64

46 47
58 59
67 68

45

56
66

52

51

44

53

62

54

63

57

55

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

3132 33

34 35

1

10

5 V

Engine control relay

Exhaust camshaft position sensor

B-106

MU802337

50

1

R-Y

2

3

Engine-ECU

Exhaust camshaft position sensor circuit

34

B

L-R

B-12X

Battery

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

C-119

(MU803782)

C-121

(MU803783)

B-Y

6 <A-13> (*1) or
13 <C-31> (*2)

B-Y

B-Y

NOTE

*1: L.H. drive vehicles
*2: R.H. drive vehicles

AB

2

1

4

3

To engine-ECU