Mitsubishi Eclipse. Manual — part 477

MULTIPORT FUEL INJECTION (MFI) DIAGNOSIS

TSB Revision

MULTIPORT FUEL INJECTION (MFI) <3.0L>

13B-451

STEP 8. Check the right bank injector resistance at
intermediate connector B-48.
(1) Disconnect the injector intermediate connector B-48.

(2) Measure the resistance between each male connector side

connector terminal.

a. Measure the resistance between terminal No. 1 and No.

2 when measuring No. 1 cylinder.

b. Measure the resistance between terminal No. 1 and No.

3 when measuring No. 3 cylinder.

c. Measure the resistance between terminal No. 1 and No.

4 when measuring No. 5 cylinder.

• Resistance should be between 13 and 16 ohms [at 20°C

(68

°F)].

Q: Is the measured resistance between 13 and 16 ohms?

YES : Go to Step 11.
NO : Go to Step 9.

STEP 9. Check connector B-01, B-05, B-26 at right bank
injector for damage.
(1) Remove the intake manifold.
(2) Check the injector connector, which deviates from the

standard value at Step 8.

Q: Is the connector in good condition?

YES : Go to Step 10.
NO : Repair or replace it. Refer to GROUP 00E, Harness

Connector Inspection

P.00E-2

. Then go to Step 16.

AK300751

1

2

3

4

CONNECTOR: B-48

AB

B-48 (B)

HARNESS CONNECTOR:
COMPONENT SIDE

AK000240AB

INJECTOR
INTERMEDIATE
CONNECTOR

1 2
3 4

AK300752

1

2

CONNECTORS: B-01, B-05, B-26

AB

B-05 (GR) B-26 (GR)

B-01 (GR)

HARNESS CONNECTOR:
COMPONENT SIDE

MULTIPORT FUEL INJECTION (MFI) DIAGNOSIS

TSB Revision

MULTIPORT FUEL INJECTION (MFI) <3.0L>

13B-452

STEP 10. Check the right bank injector.
(1) Disconnect the right bank injector connector, which

deviates from the standard value at Step 8.

(2) Measure the resistance between injector side connector

terminal No. 1 and No. 2.

Standard value: 13

− 16 ohms [at 20°C (68°F)]

Q: Is the resistance between 13 and 16 ohms?

YES : Repair harness wire between injector intermediate

connector and right bank injector connector because
of harness damage. Then go to Step 16.

NO : Replace the injector. Then go to Step 16.

AK300752

1

2

CONNECTORS: B-01, B-05, B-26

AB

B-05 (GR) B-26 (GR)

B-01 (GR)

HARNESS CONNECTOR:
COMPONENT SIDE

AK000241

INJECTOR SIDE
CONNECTOR

1 2

AB

MULTIPORT FUEL INJECTION (MFI) DIAGNOSIS

TSB Revision

MULTIPORT FUEL INJECTION (MFI) <3.0L>

13B-453

STEP 11. Check connector C-51 at ECM <M/T> or
connector C-52 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 16.

AK300458

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3

4

5

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8

9

11

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30

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26

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35

1

10

CONNECTOR: C-52 <A/T>

C-52 (GR)

AB

HARNESS CONNECTOR:
COMPONENT SIDE

AK300443

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3

4

5

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8

9

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12

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30

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1

10

CONNECTOR: C-51 <M/T>

C-51 (GR)

AB

HARNESS CONNECTOR:
COMPONENT SIDE

MULTIPORT FUEL INJECTION (MFI) DIAGNOSIS

TSB Revision

MULTIPORT FUEL INJECTION (MFI) <3.0L>

13B-454

STEP 12. Check for harness damage between right bank
injector connector and ECM connector <M/T> or PCM
connector <A/T>.

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

(terminal No. 2) and ECM connector C-51 (terminal No. 1)
<M/T> or PCM connector C-52 (terminal No. 1) <A/T> when
checking No. 1 cylinder.

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

(terminal No. 2) and ECM connector C-51 (terminal No. 24)
<M/T> or PCM connector C-52 (terminal No. 24) <A/T>
when checking No. 3 cylinder.

c. Check the harness wire between injector connector B-26

(terminal No. 2) and ECM connector C-51 (terminal No. 10)
<M/T> or PCM connector C-52 (terminal No. 10) <A/T>
when checking No. 5 cylinder.

Q: Is the harness wire in good condition?

YES : Go to Step 13.
NO : Repair it. Then go to Step 16.

STEP 13. Check the fuel pressure.
Refer to Fuel Pressure Test

P.13B-1106

.

Q: Is the fuel pressure normal?

YES : Go to Step 14.
NO : Repair or replace it. Then go to Step 16.

AK300752

1

2

CONNECTORS: B-01, B-05, B-26

AB

B-05 (GR) B-26 (GR)

B-01 (GR)

HARNESS CONNECTOR:
COMPONENT SIDE

AK300458

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3

4

5

6

7

8

9

11

12

13

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15

16

17

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20

30

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26

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35

1

10

CONNECTOR: C-52 <A/T>

C-52 (GR)

AB

HARNESS CONNECTOR:
COMPONENT SIDE

AK300443

2

3

4

5

6

7

8

9

11

12

13

14

15

16

17

18

19

20

30

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22

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26

27

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29

31

32

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34

35

1

10

CONNECTOR: C-51 <M/T>

C-51 (GR)

AB

HARNESS CONNECTOR:
COMPONENT SIDE