Mitsubishi Eclipse. Manual - part 485

MULTIPORT FUEL INJECTION (MFI) DIAGNOSIS

TSB Revision

MULTIPORT FUEL INJECTION (MFI) <3.0L>

13B-483

(3) Measure the voltage between terminal No. 96 <M/T> or 

terminal No. 51 <A/T> and ground by backprobing.

• When fuel tank temperature is 0°C (32°F), voltage 

should be 2.7 and 3.1 volts.

• When fuel tank temperature is 20°C (68°F), voltage 

should be 2.1 and 2.5 volts.

• When fuel tank temperature is 40°C (104°F), voltage 

should be 1.6 and 2.0 volts.

• When fuel tank temperature is 80°C (176°F), voltage 

should be 0.8 and 1.2 volts.

(4) Turn the ignition switch to the "LOCK" (OFF) position.
Q: Is the voltage normal?

YES : Go to Step 7.
NO :  Go to Step 8.

AK101408

71 72

73 74

78

80 81

79

82 83 84 85 86 87 88 89

75 76

91 92 93

94 95

96

98

99

97

77

90

100

AE

<M/T>

C-62 HARNESS 
CONNECTOR: 
HARNESS SIDE

77

90

100

54 55 56

46

45

44

58 59

60 61 62 63

64 65 66

47

41 42 43

48 49 50

57

51 52

AK101075

53

C-55 HARNESS 
CONNECTOR: 
HARNESS SIDE

<A/T>

AR

MULTIPORT FUEL INJECTION (MFI) DIAGNOSIS

TSB Revision

MULTIPORT FUEL INJECTION (MFI) <3.0L>

13B-484

STEP 7. Check connector C-62 at ECM <M/T> or connector 
C-55 at PCM <A/T> for damage.
Q: Is the connector in good condition?

YES :  Check connector C-28 and C-90 at intermediate 

connector for damage, and repair or replace as 
required. Refer to GROUP 00E, Harness Connector 
Inspection 

P.00E-2

. If intermediate connector are in 

good condition, repair harness wire between fuel level 
sensor connector D-17 (terminal No. 3) and ECM 
connector C-62 (terminal No. 96) <M/T> or PCM 
connector C-55 (terminal No. 51) <A/T> because of 
open circuit. Then go to Step 12.

NO :  Repair or replace it. Refer to GROUP 00E, Harness 

Connector Inspection 

P.00E-2

. Then go to Step 12.

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

AK300445

80

87

81

94

85

82

84

93

86

98

99

74

92

73

83

88

91

95

97 96

100

89

78

71

90

76

77

75

72
79

CONNECTOR: C-62 <M/T>

C-62 (GR)

AB

HARNESS CONNECTOR:
COMPONENT SIDE

MULTIPORT FUEL INJECTION (MFI) DIAGNOSIS

TSB Revision

MULTIPORT FUEL INJECTION (MFI) <3.0L>

13B-485

STEP 8. Check connector C-62 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 9.
NO :  Repair or replace it. Refer to GROUP 00E, Harness 

Connector Inspection 

P.00E-2

. Then go to Step 12.

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

AK300445

80

87

81

94

85

82

84

93

86

98

99

74

92

73

83

88

91

95

97 96

100

89

78

71

90

76

77

75

72
79

CONNECTOR: C-62 <M/T>

C-62 (GR)

AB

HARNESS CONNECTOR:
COMPONENT SIDE

MULTIPORT FUEL INJECTION (MFI) DIAGNOSIS

TSB Revision

MULTIPORT FUEL INJECTION (MFI) <3.0L>

13B-486

STEP 9. Check for short circuit to ground between fuel 
level sensor connector D-17 (terminal No. 3) and ECM 
connector C-62 (terminal No. 96) <M/T> or PCM connector 
C-55 (terminal No. 51) <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.

AK300453

1

2

3

4

5

D-17 (GR)

AB

CONNECTOR: D-17

HARNESS CONNECTOR:
COMPONENT SIDE

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

AK300445

80

87

81

94

85

82

84

93

86

98

99

74

92

73

83

88

91

95

97 96

100

89

78

71

90

76

77

75

72
79

CONNECTOR: C-62 <M/T>

C-62 (GR)

AB

HARNESS CONNECTOR:
COMPONENT SIDE