Mitsubishi Eclipse. Manual — part 386

MULTIPORT FUEL INJECTION (MFI) DIAGNOSIS

TSB Revision

MULTIPORT FUEL INJECTION (MFI) <3.0L>

13B-87

STEP 15. Check connector B-04 at manifold absolute
pressure sensor for damage.
Q: Is the connector in good condition?

YES : Go to Step 16.
NO : Repair or replace it. Refer to GROUP 00E, Harness

Connector Inspection

P.00E-2

. Then go to Step 18.

STEP 16. Check connector C-62 at ECM <M/T> or C-59 at
PCM <A/T> for damage.
Q: Is the 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 18.

AK103763

2 1

3

CONNECTOR: B-04

AC

B-04(B)

HARNESS CONNECTOR:
COMPONENT SIDE

AK300460

98

78

71

88

89

76

77

72
79
91

73
80

74

75

81
92

82

83

93

84

85

94

86

87

95

96

90

97

CONNECTOR: C-59 <A/T>

C-59 (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-88

STEP 17. Check for short circuit to ground and harness
damage between manifold absolute pressure sensor
connector B-04 (terminal No. 1) and ECM connector C-62
(terminal No. 92) <M/T> or PCM connector C-59 (terminal
No. 91) <A/T>.
Q: Is the harness wire in good condition?

YES : Replace the manifold absolute pressure sensor. Then

go to Step 18.

NO : Repair it. Then go to Step 18.

AK103763

2 1

3

CONNECTOR: B-04

AC

B-04(B)

HARNESS CONNECTOR:
COMPONENT SIDE

AK300460

98

78

71

88

89

76

77

72
79
91

73
80

74

75

81
92

82

83

93

84

85

94

86

87

95

96

90

97

CONNECTOR: C-59 <A/T>

C-59 (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-89

STEP 18. 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.13B-7

.

(2) Check the diagnostic trouble code (DTC).
Q: Is DTC P0107 set?

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

DTC P0108: Manifold Absolute Pressure Circuit High Input

AK301451

1 2 3

SKY

-BLUE

GREEN-YELLO

W

BLA

C

K

MANIFOLD ABSOLUTE
PRESSURE (MAP) SENSOR

B-04
(MU802723)

92 <M/T>*2
91 <A/T>*4

42 <M/T>*1
46 <A/T>*3

49 <M/T>*1
57 <A/T>*3

1

2

3

5V

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

NOTE
*1:ECM connector C-58 <M/T>
*2:ECM connector C-62 <M/T>
*3:PCM connector C-55 <A/T>
*4:PCM connector C-59 <A/T>

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

C-58 <M/T>
(MU803782)

C-55 <A/T>
(MU803781)

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

98

78

71

88 89

76 77

72
79
91

73
80

74

75

81
92

82 83
93

84 85

94

86 87

95 96

90

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

97

C-62 <M/T>
(MU803783)

C-59 <A/T>
(MU803782)

Manifold Absolute Pressure Sensor Circuit

MULTIPORT FUEL INJECTION (MFI) DIAGNOSIS

TSB Revision

MULTIPORT FUEL INJECTION (MFI) <3.0L>

13B-90

.

CIRCUIT OPERATION

• A 5-volt voltage is supplied to the manifold abso-

lute pressure sensor power terminal (terminal No.
3) from ECM (terminal No. 42) or PCM (terminal
No. 46). The ground terminal (terminal No. 2) is
grounded with ECM (terminal No. 49) or PCM
(terminal No. 57).

• A voltage that is proportional to the intake mani-

fold pressure is sent to the ECM (terminal No. 92)
or PCM (terminal No. 91) from the manifold abso-
lute pressure sensor output terminal (terminal No.
1).

.

TECHNICAL DESCRIPTION

• The manifold absolute pressure sensor outputs a

voltage which corresponds to the intake manifold
pressure.

• The ECM <M/T> or PCM <A/T> checks whether

this voltage is within a specified range.

.

DESCRIPTIONS OF MONITOR METHODS
Manifold absolute pressure sensor output voltage is

out of specified range.

.

MONITOR EXECUTION
Continuous

.

MONITOR EXECUTION CONDITIONS (Other
monitor and Sensor)

Other Monitor (There is no temporary DTC stored

in memory for the item monitored below)

• Not applicable

Sensor (The sensor below is determined to be

normal)

• Engine coolant temperature sensor

• Throttle position sensor

.

AK103739

CONNECTOR: B-04

MANIFOLD
ABSOLUTE
PRESSURE
SENSOR

AD

B-04(B)

AK300244

CONNECTORS: C-55, C-59 <A/T>

AD

PCM

C-55 (GR)

C-59 (GR)

AK300091

CONNECTORS: C-58, C-62 <M/T>

ECM

AD

C-58 (GR)

C-62 (GR)