Mitsubishi Eclipse / Eclipse Spyder (2000-2002). Service and repair manual — part 104

MULTIPORT FUEL INJECTION (MFI) DIAGNOSIS

TSB Revision

MULTIPORT FUEL INJECTION (MFI) <2.4L ENGINE>

13A-115

STEP 10. Check for open circuit and harness damage
between heated oxygen sensor (front) connector B-17
terminal 2 and ECM connector C-60 terminal 92 <M/T> or
PCM connector C-54 terminal 57 <A/T>.
Q: Is the harness wire in good condition?

YES : Replace the ECM or PCM. Then go to Step 15.
NO : Repair it. Then go to Step 15.

STEP 11. 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 12.
NO : Repair or replace it. Refer to GROUP 00E, Harness

Connector Inspection (

P.00E-2

). Then go to Step 15.

AK000272AB

AK000272

CONNECTOR : B-17

AK000280

C-54

C-60

ECM<M/T>
OR
PCM<A/T>

CONNECTORS:C-60<M/T>,C-54<A/T>

BB

AK000280

C-60

ECM<M/T>
OR
PCM<A/T>

CONNECTORS:C-60<M/T>,C-57<A/T>

BE

C-57

MULTIPORT FUEL INJECTION (MFI) DIAGNOSIS

TSB Revision

MULTIPORT FUEL INJECTION (MFI) <2.4L ENGINE>

13A-116

STEP 12. Check for harness damage between heated
oxygen sensor (front) connector B-17 terminal 2 and ECM
connector C-60 terminal 92 <M/T> or PCM connector C-54
terminal 57 <A/T>.
Q: Is the harness wire in good condition?

YES : Go to Step 13.
NO : Repair it. Then go to Step 15.

STEP 13. Check for short circuit to ground and harness
damage between heated oxygen sensor (front) connector
B-17 terminal 4 and ECM connector C-60 terminal 76 <M/T>
or PCM connector C-57 terminal 71 <A/T>.
Q: Is the harness wire in good condition?

YES : Go to Step 14.
NO : Repair it. Then go to Step 15.

AK000272AB

AK000272

CONNECTOR : B-17

AK000280

C-54

C-60

ECM<M/T>
OR
PCM<A/T>

CONNECTORS:C-60<M/T>,C-54<A/T>

BB

AK000272AB

AK000272

CONNECTOR : B-17

AK000280

C-60

ECM<M/T>
OR
PCM<A/T>

CONNECTORS:C-60<M/T>,C-57<A/T>

BE

C-57

MULTIPORT FUEL INJECTION (MFI) DIAGNOSIS

TSB Revision

MULTIPORT FUEL INJECTION (MFI) <2.4L ENGINE>

13A-117

STEP 14. Check the heated oxygen sensor (front).
(1) Disconnect the heated oxygen sensor (front) connector B-

17 and connect test harness special tool, MD998464, to the
connector on the heated oxygen sensor (front) side.

(2) Warm up the engine until engine coolant 80

°

C (176

°

F) or

higher.

CAUTION

Be very careful when connecting the jumper wires;
incorrect connection can damage the heated oxygen
sensor (front).
(3) Use the jumper wires to connect terminal 1 (red clip) to the

positive battery terminal and terminal 3 (blue clip) to the
negative battery terminal.

(4) Connect a digital volt meter between terminal 2 (black clip)

and terminal 4 (white clip).

(5) While repeatedly revving the engine, measure the heated

oxygen sensor (front) output voltage.

Standard value: 0.6

−

1.0 V

Q: Is the voltage at the standard value?

YES : Replace the ECM or PCM. Then go to Step 15.
NO : Replace the heated oxygen sensor (front). Then go to

Step 15.

STEP 15. Test the OBD-II drive cycle.
(1) Carry out a test drive with the drive cycle pattern. Refer to,

Procedure 4

−

Heated Oxygen Sensor Monitor and

Procedure 6

−

Other Monitor (

P.13A-5

).

(2) Check the diagnostic trouble code (DTC).

Q: Is the DTC P0130 is output?

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

ACX02476

CONNECTOR : B-17

HEATED OXYGEN
SENSOR (FRONT)

AD

AKX01625AC

BLUE

RED

BLACK

JUMPER
WIRES

WHITE

MD998464

MULTIPORT FUEL INJECTION (MFI) DIAGNOSIS

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MULTIPORT FUEL INJECTION (MFI) <2.4L ENGINE>

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DTC P0133: O

2

Sensor Circuit Slow Response (sensor 1)

CIRCUIT OPERATION

•

A voltage corresponding to the oxygen
concentration in the exhaust gas is sent to the
ECM (terminal 76) <M/T> or PCM (terminal 71)
<A/T> from the output terminal (terminal 4) of the
right bank heated oxygen sensor (front).

•

Terminal 2 of the right bank heated oxygen
sensor (front) is grounded with ECM (terminal 92)
<M/T> or PCM (terminal 57) <A/T>.

AK000657

4

1 2
3

BL

ACK

BL

ACK

WHITE

B-17
MU802605

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

HEATED OXYGEN
SENSOR(FRONT)

FROM MFI RELAY

TO ECM
OR PCM

1

2

3

4

92<M/T>
57<A/T>*1

76<M/T>
71<A/T>*2

C-60<M/T>
(MU803772)

C-54<A/T>
(MU803781)

C-57<A/T>
(MU803782)

NOTE
*1:PCM connector C-54<A/T>
*2:PCM connector C-57<A/T>

98

78

71

88 89

76 77

72
79
91

73
80

74

75

81
92

8283
93

8485

94

8687

9596

90

97

82

78

81

80

89 90 91 92

79

87

71

74

73

72

76

75

77

85

88

83 84

86

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

ACX02476

CONNECTOR : B-17

HEATED OXYGEN
SENSOR (FRONT)

AD

AK000280

C-54

C-60

ECM<M/T>
OR
PCM<A/T>

CONNECTORS:C-60<M/T>,C-54,C-57<A/T>

BD

C-57