Mitsubishi Eclipse. Manual - part 381

MULTIPORT FUEL INJECTION (MFI) DIAGNOSIS

TSB Revision

MULTIPORT FUEL INJECTION (MFI) <3.0L>

13B-67

STEP 11. Check 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 12.

NO :  Repair it. Then go to Step 12.

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-68

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.13B-7

.

(2) Check the diagnostic trouble code (DTC).
Q: Is DTC P0106 set?

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

DTC P0107: Manifold Absolute Pressure Circuit Low 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-69

.

CIRCUIT OPERATION

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

lute pressure sensor power terminal (terminal No. 
3) from the ECM (terminal No. 42) or PCM (termi-
nal 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)

MULTIPORT FUEL INJECTION (MFI) DIAGNOSIS

TSB Revision

MULTIPORT FUEL INJECTION (MFI) <3.0L>

13B-70

DTC SET CONDITIONS

Logic Flow Chart

.

Check Conditions

• 8 minutes or more have passed since the starting 

sequence was completed, when the engine cool-
ant temperature at engine start is 0

°C (32°F) or 

lower.

• Throttle position sensor output voltage is higher 

than 1.25 volts.

Judgement Criteria

• Manifold absolute pressure is 5.0 kPa (1.5 in.Hg) 

or lower for 2 seconds.

.

OBD-ll DRIVE CYCLE PATTERN
Refer to Diagnostic Function 

− OBD-ll Drive Cycle − 

Procedure 6 

− Other Monitor 

P.13B-7

.

.

TROUBLESHOOTING HINTS (The most likely 
causes for this code to be set are: )

• Manifold absolute pressure sensor failed.

• Open or shorted manifold absolute pressure sen-

sor circuit, harness damage or connector dam-
age.

• ECM <M/T> failed.

• PCM <M/T> failed.

YES

YES

YES

YES

NO

NO

NO

NO

MONITORING

CONDITIONS

PRESSURE < 4.9kPa (1.4in.Hg)

PRESSURE > 117kPa (34.6in.Hg)

CONTINUOUS

FAILURE FOR 2secs

MALFUNCTION

END

GOOD

START

AK301416