Mitsubishi Eclipse. Manual - part 228

MULTIPORT FUEL INJECTION (MFI) DIAGNOSIS

TSB Revision

MULTIPORT FUEL INJECTION (MFI) <2.4L>

13A-405

STEP 3. Check connector C-60 at ECM <M/T> or connector 
C-57 at PCM <A/T> for damage.
Q: Is the connector in good condition?

YES : Go to Step 4.
NO :  Repair or replace it. Refer to GROUP 00E, Harness 

Connector Inspection 

P.00E-2

. Then go to Step 6.

AK300415

82

78

8180

89

90

91

92

79

87

71

74 73 72

76 75

77

85

88

83

84

86

CONNECTOR: C-60 <M/T>

AB

C-60 (G)

HARNESS CONNECTOR:
COMPONENT SIDE

AK300735

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-57 <A/T>

C-57 (GR)

AB

HARNESS CONNECTOR:
COMPONENT SIDE

MULTIPORT FUEL INJECTION (MFI) DIAGNOSIS

TSB Revision

MULTIPORT FUEL INJECTION (MFI) <2.4L>

13A-406

STEP 4. Check for open circuit and short circuit to ground 
and harness damage between knock sensor connector 
B-35 (terminal No. 1) and ECM connector C-60 (terminal 
No. 78) <M/T> or PCM connector C-57 (terminal No. 90) 
<A/T>.
Q: Is the harness wire in good condition?

YES : Go to Step 5.
NO :  Repair it. Then go to Step 6.

AK300401

1

2

CONNECTOR: B-35

AB

B-35 (GR)

KNOCK SENSOR

HARNESS 
CONNECTOR:
COMPONENT SIDE

AK300415

82

78

8180

89

90

91

92

79

87

71

74 73 72

76 75

77

85

88

83

84

86

CONNECTOR: C-60 <M/T>

AB

C-60 (G)

HARNESS CONNECTOR:
COMPONENT SIDE

MULTIPORT FUEL INJECTION (MFI) DIAGNOSIS

TSB Revision

MULTIPORT FUEL INJECTION (MFI) <2.4L>

13A-407

STEP 5. Check the knock sensor.
(1) Disconnect the knock sensor connector B-35.
(2) Start the engine and run at idle.
(3) Measure the voltage between knock sensor side connector 

terminal No. 1 (output) and No. 2 (ground).

(4) Gradually increase the engine speed.

• The voltage increases with the increase in the engine 

speed.

(5) Turn the ignition switch to the "LOCK"(OFF) position.
Q: Is the sensor operating properly?

YES : Replace the ECM or PCM. Then go to Step 6.
NO :  Replace the knock sensor. Then go to Step 6.

AK300735

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-57 <A/T>

C-57 (GR)

AB

HARNESS CONNECTOR:
COMPONENT SIDE

AK300401

1

2

CONNECTOR: B-35

AB

B-35 (GR)

KNOCK SENSOR

HARNESS 
CONNECTOR:
COMPONENT SIDE

MULTIPORT FUEL INJECTION (MFI) DIAGNOSIS

TSB Revision

MULTIPORT FUEL INJECTION (MFI) <2.4L>

13A-408

STEP 6. Using scan tool MB991958, read the diagnostic 
trouble code (DTC).

CAUTION

To prevent damage to scan tool MB991958, always turn the 
ignition switch to the "LOCK" (OFF) position before con-
necting or disconnecting scan tool MB991958.
(1) Connect scan tool MB991958 to the data link connector.
(2) Turn the ignition switch to the "ON" position.
(3) Erase the DTC.
(4) Test drive under the following conditions:

• Engine speed: 3,000 − 5,000r/min

• Engine load : 40 % or more

• Drive a minimum of 3 seconds after the above condi-

tions have been met.

(5) After completing the test drive, read the DTC.Turn the 

ignition switch to the "LOCK" (OFF) position.

Q: Is DTC P0325 set?

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

AK300810

AB

MB991911

16-PIN

MB991827

MB991824