Mitsubishi Outlander (2003+). Manual - part 43

TROUBLESHOOTING

MULTIPORT FUEL INJECTION (MFI)

13A-35

STEP 6. Check harness between B-08 (terminal 
No. 5) air flow sensor connector and C-135 
(terminal No. 40) engine-ECU connector.

NOTE: Before checking harness, check intermediate 
connector C-16, and repair if necessary.

œ

Check earthing line for open circuit and damage.

Q: Is the check result normal? 

YES : 

Go to Step 7 .

NO : 

Repair.

STEP 7. MUT-II data list

œ

Refer to Data list reference table 

3

13A



.

a. Item 13: Intake air temperature sensor

OK: At ambient temperature (atmospheric 
temperature) or equivalent.

Q: Is the check result normal?

YES : 

Intermittent malfunction (Refer to GROUP 

00 

-

 How to Use 

Troubleshooting/Inspection Service Points 

3

00



).

NO : 

Replace engine-ECU. 

STEP 8. Measure voltage at B-08 air flow sensor 
connector.

œ

Disconnect connector, and measure at harness 
side.

œ

Ignition switch: ON 

œ

Voltage between terminal No. 6 and earth.

OK: 4.5 

-

 4.9 V

Q: Is the check result normal?

YES : 

Go to Step 13 .

NO : 

Go to Step 9 .

AK300253

3

4

5

1

2

6

7

AB

Harness side connector

B-08 (B)

Connector: B-08

AK300256

34 33 32

36 35

37

42

45

31

39

38

46

40

41

43

44

AB

CONNECTOR: C-135

C-135

Harness side connector

AK300253

3

4

5

1

2

6

7

AB

Harness side connector

B-08 (B)

Connector: B-08

TROUBLESHOOTING

MULTIPORT FUEL INJECTION (MFI)

13A-36

STEP 9. Measure voltage at C-137 engine-ECU 
connector.

œ

Measure engine-ECU terminal voltage.

œ

Disconnect B-08 air flow sensor connector.

œ

Ignition switch: ON

œ

Voltage between terminal No. 72 and earth.

OK: 4.5 

-

 4.9 V

Q: Is the check result normal?

YES : 

Go to Step 10 .

NO : 

Go to Step 11 .

STEP 10. Connector check: C-137 engine-ECU 
connector

Q: Is the check result normal?

YES : 

Check and repair harness between B-08 

(terminal No. 6) air flow sensor connector 
and C-137 (terminal No. 72) engine-ECU 
connector.

œ

Check output line for open circuit.

NO : 

Repair.

AK300254

82

78

8180

89

90

91

92

79

87

71

74 73 72

76 75

77

85

88

83

84

86

AB

CONNECTOR: C-137

C-137

Harness side connector

AK300253

3

4

5

1

2

6

7

AB

Harness side connector

B-08 (B)

Connector: B-08

AK300254

82

78

8180

89

90

91

92

79

87

71

74 73 72

76 75

77

85

88

83

84

86

AB

CONNECTOR: C-137

C-137

Harness side connector

AK300253

3

4

5

1

2

6

7

AB

Harness side connector

B-08 (B)

Connector: B-08

TROUBLESHOOTING

MULTIPORT FUEL INJECTION (MFI)

13A-37

STEP 11. Connector check: C-137 engine-ECU 
connector

Q: Is the check result normal?

YES : 

Go to Step 12 .

NO : 

Repair.

STEP 12. Check harness between B-08 (terminal 
No. 6) air flow sensor connector and C-137 
(terminal No. 72) engine-ECU connector.

œ

Check output line for short circuit.

Q: Is the check result normal?

YES : 

Go to Step 7 .

NO : 

Repair.

AK300254

82

78

8180

89

90

91

92

79

87

71

74 73 72

76 75

77

85

88

83

84

86

AB

CONNECTOR: C-137

C-137

Harness side connector

AK300253

3

4

5

1

2

6

7

AB

Harness side connector

B-08 (B)

Connector: B-08

AK300254

82

78

8180

89

90

91

92

79

87

71

74 73 72

76 75

77

85

88

83

84

86

AB

CONNECTOR: C-137

C-137

Harness side connector

TROUBLESHOOTING

MULTIPORT FUEL INJECTION (MFI)

13A-38

STEP 13. Measure voltage at B-08 air flow sensor 
connector.

œ

Use special tool test harness (MB991709) to con-
nect only terminal No. 5 and No. 6, and then 
measure at pick-up harness.

œ

Ignition switch: ON 

œ

Voltage between terminal No. 6 and earth.

OK:

Ambient temperature at 

-

20

•

C: 3.8 

-

 4.4 V

Ambient temperature at 0

•

C: 3.2 

-

 3.8 V

Ambient temperature at 20

•

C: 2.3 

-

 2.9 V 

Ambient temperature at 40

•

C: 1.5 

-

 2.1 V 

Ambient temperature at 60

•

C: 0.8 

-

 1.4 V

Ambient temperature at 80

•

C: 0.4 

-

 1.0 V 

Q: Is the check result normal?

YES : 

Go to Step 7 .

NO : 

Go to Step 14 .

STEP 14. Connector check: C-137 engine-ECU 
connector

Q: Is the check result normal?

YES : 

Go to Step 15 .

NO : 

Repair.

STEP 15. Check harness between B-08 (terminal 
No. 6) air flow sensor connector and C-137 
(terminal No. 72) engine-ECU connector.

œ

Check output line for damage.

Q: Is the check result normal?

YES : 

Go to Step 16 .

NO : 

Repair.

AK300253

3

4

5

1

2

6

7

AB

Harness side connector

B-08 (B)

Connector: B-08

AK300254

82

78

8180

89

90

91

92

79

87

71

74 73 72

76 75

77

85

88

83

84

86

AB

CONNECTOR: C-137

C-137

Harness side connector

AK300253

3

4

5

1

2

6

7

AB

Harness side connector

B-08 (B)

Connector: B-08

AK300254

82

78

8180

89

90

91

92

79

87

71

74 73 72

76 75

77

85

88

83

84

86

AB

CONNECTOR: C-137

C-137

Harness side connector