Mitsubishi Eclipse. Manual — part 175

MULTIPORT FUEL INJECTION (MFI) DIAGNOSIS

TSB Revision

MULTIPORT FUEL INJECTION (MFI) <2.4L>

13A-193

STEP 3. Check the continuity at throttle position sensor
harness side connector B-07.
(1) Disconnect the connector B-07 and measure at the harness

side.

(2) Measure the continuity between terminal No. 1 and ground.

• Should be less than 2 ohms.

Q: Is the continuity normal?

YES : Go to Step 6.
NO : Go to Step 4.

AK300402

2 1

3

4

CONNECTOR: B-07

AB

B-07 (B)

HARNESS CONNECTOR:
COMPONENT SIDE

AK000237AI

B-07 HARNESS
CONNECTOR:
COMPONENT SIDE

4 3 2 1

MULTIPORT FUEL INJECTION (MFI) DIAGNOSIS

TSB Revision

MULTIPORT FUEL INJECTION (MFI) <2.4L>

13A-194

STEP 4. Check connector C-60 at ECM <M/T> or connector
C-54 at PCM <A/T> for damage.
Q: Is the connector in good condition?

YES : Go to Step 5.
NO : Repair or replace it. Refer to GROUP 00E, Harness

Connector Inspection

P.00E-2

. Then go to Step 8.

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

AK300412

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

C-54 (GR)

CONNECTOR: C-54 <A/T>

AB

HARNESS CONNECTOR:
COMPONENT SIDE

MULTIPORT FUEL INJECTION (MFI) DIAGNOSIS

TSB Revision

MULTIPORT FUEL INJECTION (MFI) <2.4L>

13A-195

STEP 5. Check for open circuit and harness damage
between throttle position sensor connector B-07 (terminal
No. 2) and ECM connector C-60 (terminal No. 92) <M/T> or
PCM connector C-54 (terminal No. 57) <A/T>.
Q: Is the harness wire in good condition?

YES : Replace the ECM or PCM. Then go to Step 8.
NO : Repair it. Then go to Step 8.

AK300402

2 1

3

4

CONNECTOR: B-07

AB

B-07 (B)

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

AK300412

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

C-54 (GR)

CONNECTOR: C-54 <A/T>

AB

HARNESS CONNECTOR:
COMPONENT SIDE

MULTIPORT FUEL INJECTION (MFI) DIAGNOSIS

TSB Revision

MULTIPORT FUEL INJECTION (MFI) <2.4L>

13A-196

STEP 6. Check the throttle position sensor.
(1) Disconnect the connector B-07.

(2) Measure the resistance between throttle position sensor

side connector terminal No. 1 and No. 4.

Standard value: 3.5

− 6.5 kΩ

(3) Measure resistance between the throttle position sensor

side connector terminal No. 1 and No. 3.

(4) Move the throttle valve from the idle position to the full-open

position.

• Resistance should change smoothly in proportion to the

opening angle of the throttle valve.

Q: Is the resistance normal?

YES : Go to Step 7.
NO : Replace the throttle position sensor. Refer to

P.13A-946

, Throttle Body. Then go to Step 8.

STEP 7. Using scan tool MB991958, check data list item 14:
Throttle Position Sensor.

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) Set scan tool MB991958 to the data reading mode for item

14, Throttle Position Sensor.

• With the throttle valve in the idle position, voltage should

be between 0.535 and 0.735 volt.

• With the throttle valve in the full-open position, voltage

should be between 4.5 and 5.5 volts.

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

YES : It can be assumed that this malfunction is intermittent.

Refer to GROUP 00, How to Use
Troubleshooting/Inspection Service Points

P.00-6

.

NO : Replace the ECM or PCM. Then go to Step 8.

AK300402

2 1

3

4

CONNECTOR: B-07

AB

B-07 (B)

HARNESS CONNECTOR:
COMPONENT SIDE

AK000320

1 2 3 4

THROTTLE POSITION
SENSOR SIDE
CONNECTOR

AB

AK300810

AB

MB991911

16-PIN

MB991827

MB991824