Mitsubishi Eclipse. Manual - part 252

MULTIPORT FUEL INJECTION (MFI) DIAGNOSIS

TSB Revision

MULTIPORT FUEL INJECTION (MFI) <2.4L>

13A-501

STEP 10. Check for harness damage between MFI relay 
connector A-18X (terminal No. 4) and evaporative emission 
purge solenoid connector B-33 (terminal No. 2).
Q: Is the harness wire in good condition?

YES : Go to Step 11.
NO :  Repair it. Then go to Step 12.

AK300454

2

1

3

4

CONNECTOR: A-18X

AB

A-18X

HARNESS CONNECTOR:
COMPONENT SIDE

AK300407

1

2

AB

B-33 (B)

CONNECTOR: B-33

HARNESS 
CONNECTOR:
COMPONENT SIDE

MULTIPORT FUEL INJECTION (MFI) DIAGNOSIS

TSB Revision

MULTIPORT FUEL INJECTION (MFI) <2.4L>

13A-502

STEP 11. Check for harness damage between evaporative 
emission purge solenoid connector B-33 (terminal No. 1) 
and ECM connector C-49 (terminal No. 9) <M/T> or PCM 
connector C-50 (terminal No. 34) <A/T>.
Q: Is the harness wire in good condition?

YES : Replace the ECM or PCM. Then go to Step 12.
NO :  Repair it. Then go to Step 12.

AK300407

1

2

AB

B-33 (B)

CONNECTOR: B-33

HARNESS 
CONNECTOR:
COMPONENT SIDE

AK300413

1

14

4

19

5

22

6

17

8

15

9

18

7

20

16

2

21

23

26

24

25

3

10

11

12

13

CONNECTOR: C-49 <M/T>

C-49 (G)

AB

HARNESS CONNECTOR:
COMPONENT SIDE

AK300414

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

C-50 (GR)

CONNECTOR: C-50 <A/T>

AB

HARNESS CONNECTOR:
COMPONENT SIDE

MULTIPORT FUEL INJECTION (MFI) DIAGNOSIS

TSB Revision

MULTIPORT FUEL INJECTION (MFI) <2.4L>

13A-503

STEP 12. Test the OBD-II drive cycle.
(1) Carry out a test drive with the drive cycle pattern. Refer to 

Diagnostic Function 

− OBD-II Drive Cycle − Procedure 6 − 

Other Monitor 

P.13A-5

.

(2) Check the diagnostic trouble code (DTC).
Q: Is DTC P0443 set?

YES : Retry the troubleshooting.
NO :  The inspection is complete.

MULTIPORT FUEL INJECTION (MFI) DIAGNOSIS

TSB Revision

MULTIPORT FUEL INJECTION (MFI) <2.4L>

13A-504

DTC P0446: Evaporative Emission Control System Vent Control Malfunction

AK101520

RED

-

WHITE

RED

-

WHITE

RED

-

WHITE

RED

1

8

7

10

5

3

1 2

4

6

9

2

RED

RED

RED

YELL

O

W

YELL

O

W

YELL

O

W

YELL

O

W

4

3

1

2

     D-10 
MU802779 

BATTERY

1

2

ENGINE CONTROL
MODULE (ECM) <M/T>
OR
POWERTRAIN CONTROL
MODULE (PCM) <A/T>

MFI
RELAY

EVAPORATIVE
EMISSION
VENTILATION
SOLENOID

     D-16
MU802355

7

2

28

9

26

24

55 <M/T>
35 <A/T>

C-28                 

7 8

5

3 4

35

34

10 11 12

2122 23 24

13 14 15

25 26 27

16

28

17

18 19 20

29

30 31

32 33

36 37

38

9

1 2

6

4

17

1

12 13 14

18

30

41

34

3

16

10

6 7

19

31

42

20

32

43

21

33

25

24

26

36

35

37

29

28

15

27

38

8 9

39 40

11

2

22

5

23

C-90

C-50 <A/T>
(MU803784)

C-56 <M/T>
(MU803770)

57 58

60 61

53

52

51

55

54

56

59

62

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

Evaporative Emission Ventilation Solenoid Circuit

3 4

1 2

A-18X