Mitsubishi Eclipse / Eclipse Spyder (2000-2002). Service and repair manual — part 106

MULTIPORT FUEL INJECTION (MFI) DIAGNOSIS

TSB Revision

MULTIPORT FUEL INJECTION (MFI) <2.4L ENGINE>

13A-123

STEP 6. Check the injector.
(1) Disconnect each injector connector.
(2) Measure the resistance between injector side connector

terminal 1 and 2.

Standard value: 13

−

16 ohm [at 20

°

C (68

°

F)]

Q: Is the resistance standard value?

YES : Go to Step 7.
NO : Replace the injector. Then go to Step 11.

STEP 7. Check connector C-49, C-60 at ECM <M/T> or
connector C-50, C-57 at PCM <A/T> for damage.
Q: Is the connector in good condition?

YES : Go to Step 8.
NO : Repair or replace it. Refer to GROUP 00E, Harness

Connector Inspection (

P.00E-2

). Then go to Step 11.

AK000273AB

AK000273

CONNECTOR : B-01, B-02, B-05, B-06

B-01 B-02 B-05 B-06

AK000559

2

1

INJECTOR SIDE
CONNECTOR

AB

AK000280

C-49,
C-50

C-57

C-60

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

CONNECTORS:C-49,C-60<M/T>,
C-50,C-57<A/T>

BF

MULTIPORT FUEL INJECTION (MFI) DIAGNOSIS

TSB Revision

MULTIPORT FUEL INJECTION (MFI) <2.4L ENGINE>

13A-124

STEP 8. Check for 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 9.
NO : Repair it. Then go to Step 11.

STEP 9. Check for harness damage between injector
connector and ECM connector <M/T> or PCM connector
<A/T>.

a. Check the harness wire between injector connector B-01

terminal 2 and ECM connector C-49 terminal 1 <M/T> or
PCM connector C-50 terminal 1 <A/T> when checking No.1
cylinder.

b. Check the harness wire between injector connector B-02

terminal 2 and ECM connector C-49 terminal 14 <M/T> or
PCM connector C-50 terminal 9 <A/T> when checking No.2
cylinder.

c. Check the harness wire between injector connector B-05

terminal 2 and ECM connector C-49 terminal 2 <M/T> or
PCM connector C-50 terminal 24 <A/T> when checking
No.3 cylinder.

d. Check the harness wire between injector connector B-06

terminal 2 and ECM connector C-49 terminal 15 <M/T> or
PCM connector C-50 terminal 2 <A/T> when checking No.4
cylinder.

Q: Is the harness wire in good condition?

YES : Go to Step 10.
NO : Repair it. Then go to Step 11.

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

AK000273AB

AK000273

CONNECTOR : B-01, B-02, B-05, B-06

B-01 B-02 B-05 B-06

AK000280

C-49,C-50

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

CONNECTORS:C-49<M/T>,C-50<A/T>

BC

MULTIPORT FUEL INJECTION (MFI) DIAGNOSIS

TSB Revision

MULTIPORT FUEL INJECTION (MFI) <2.4L ENGINE>

13A-125

STEP 10. Check the fuel pressure.
Refer to, Fuel Pressure Test (

P.13A-475

).

Q: Is the fuel pressure normal?

YES : Replace the ECM or PCM. Then go to Step 11.
NO : Repair it. Then go to Step 11.

STEP 11. Test the OBD-II drive cycle.
(1) Carry out a test drive with the drive cycle pattern. Refer to,

Procedure 6

−

Other Monitor (

P.13A-5

).

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

Q: Is the DTC P0134 is output?

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

MULTIPORT FUEL INJECTION (MFI) DIAGNOSIS

TSB Revision

MULTIPORT FUEL INJECTION (MFI) <2.4L ENGINE>

13A-126

DTC P0135: O

2

Sensor Heater Circuit Malfunction (sensor 1)

AK000658

3 4

1 2

3 4

1 2

57 58

60 61

53

52

51

55

54

56

59

62

RED-

WHITE

RED-

WHITE

RED-

WHITE

RED

BR

O

WN-WHITE

BATTERY

A-21X

3

4

1

2

HEATED OXYGEN
SENSOR(FRONT)

B-17
MU802605

1

2

3

4

TO ECM
OR PCM

TO ECM
OR PCM

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

60<M/T>
3<A/T>

C-50<A/T>
(MU803784)

C-56<M/T>
(MU803770)

MFI
RELAY

2

3 4

5 6

7 8

9

11 12 13 14 15 16 17 18 19 20

30

21 22 23

24 25

26 27 28 29

3132 33

34 35

1

10