Mitsubishi Eclipse. Manual - part 508

MULTIPORT FUEL INJECTION (MFI) DIAGNOSIS

TSB Revision

MULTIPORT FUEL INJECTION (MFI) <3.0L>

13B-575

(2) Check for the continuity between terminal 1 and ground.

• Should be less than 2 ohms.

Q: Is the continuity normal?

YES : Go to Step 16.
NO :  Go to Step 14.

STEP 14. Check connector C-51 at ECM <M/T> or 
connector C-52 at PCM <A/T> for damage.
Q: Is the connector in good condition?

YES : Go to Step 15.
NO :  Repair or replace it. Refer to GROUP 00E, Harness 

Connector Inspection 

P.00E-2

. Then go to Step 21.

AKX01418 AG

2 1

3

B-20 HARNESS 
CONNECTOR: 
COMPONENT SIDE

AK300458

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

CONNECTOR: C-52 <A/T>

C-52 (GR)

AB

HARNESS CONNECTOR:
COMPONENT SIDE

AK300443

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

CONNECTOR: C-51 <M/T>

C-51 (GR)

AB

HARNESS CONNECTOR:
COMPONENT SIDE

MULTIPORT FUEL INJECTION (MFI) DIAGNOSIS

TSB Revision

MULTIPORT FUEL INJECTION (MFI) <3.0L>

13B-576

STEP 15. Check for open circuit and harness damage 
between crankshaft position sensor connector B-20 
(terminal No. 1) and ECM connector C-51 (terminal No. 34) 
<M/T> or PCM connector C-52 (terminal No. 16) <A/T>.
Q: Is the harness wire in good condition?

YES : Replace the ECM or PCM. Then go to Step 21.
NO :  Repair it. Then go to Step 21.

AK300448

1

2

3

CRANKSHAFT
POSITION
SENSOR

CONNECTOR: B-20 <WITHOUT INTAKE 
MANIFOLD TUNING  SYSTEM>

AB

B-20 (B)

HARNESS CONNECTOR:
COMPONENT SIDE

AK300449

1

2

3

CONNECTOR: B-20 <WITH INTAKE 
MANIFOLD TUNING  SYSTEM>

AB

B-20 (B)

CRANKSHAFT
POSITION
SENSOR

HARNESS CONNECTOR:
COMPONENT SIDE

MULTIPORT FUEL INJECTION (MFI) DIAGNOSIS

TSB Revision

MULTIPORT FUEL INJECTION (MFI) <3.0L>

13B-577

STEP 16. Check connector A-18X at the MFI relay for 
damage.
Q: Is the harness connector in good condition?

YES : Go to Step 17.
NO :  Repair or replace it. Refer to GROUP 00E, Harness 

Connector Inspection 

P.00E-2

. Then go to Step 21.

AK300462

42

43

48

49

50

51

52

53

54

55

56

57

46 45 44

58

59

60

61

62

63

64

65

66

47

41

CONNECTOR: C-55 <A/T>

C-55 (GR)

AB

HARNESS CONNECTOR:
COMPONENT SIDE

AK300748

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

CONNECTOR: C-58 <M/T>

AB

C-58 (GR)

HARNESS CONNECTOR:
COMPONENT SIDE

AK300454

2

1

3

4

CONNECTOR: A-18X

AB

A-18X

HARNESS CONNECTOR:
COMPONENT SIDE

MULTIPORT FUEL INJECTION (MFI) DIAGNOSIS

TSB Revision

MULTIPORT FUEL INJECTION (MFI) <3.0L>

13B-578

STEP 17. Check connector C-58 at ECM <M/T> or 
connector C-55 at PCM <A/T> for damage.
Q: Is the connector in good condition?

YES : Go to Step 18.
NO :  Repair or replace it. Refer to GROUP 00E, Harness 

Connector Inspection 

P.00E-2

. Then go to Step 21.

AK300462

42

43

48

49

50

51

52

53

54

55

56

57

46 45 44

58

59

60

61

62

63

64

65

66

47

41

CONNECTOR: C-55 <A/T>

C-55 (GR)

AB

HARNESS CONNECTOR:
COMPONENT SIDE

AK300748

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

CONNECTOR: C-58 <M/T>

AB

C-58 (GR)

HARNESS CONNECTOR:
COMPONENT SIDE