Mitsubishi Lancer Evolution IX. Manual — part 443

TROUBLESHOOTING

MULTIPORT FUEL INJECTION (MPI)

13A-247

STEP 6. Connector check: C-121 engine-ECU
connector

Q: Is the check result normal?

YES :

Go to Step 7 .

NO :

Repair or replace the connector.

STEP 7. Perform voltage measurement at C-121
engine-ECU connector.

• Disconnect connector, and measure at the har-

ness side.

• Ignition switch: "ON"

• Voltage between terminal No. 22 and earth.

OK: System voltage

Q: Is the check result normal?

YES :

Go to Step 9 .

NO :

Go to Step 8 .

AK501995

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AB

Connector: C-121

C-121 (GR)

C-121 (GR)

Harness side connector

<L. H. drive vehicles>

<R. H. drive vehicles>

AK501995

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AB

Connector: C-121

C-121 (GR)

C-121 (GR)

Harness side connector

<L. H. drive vehicles>

<R. H. drive vehicles>

TROUBLESHOOTING

MULTIPORT FUEL INJECTION (MPI)

13A-248

STEP 8. Connector check: C-01 combination
meter connector

Q: Is the check result normal?

YES :

Check intermediate connector C-124, and

repair if necessary. If intermediate
connector is normal, check and repair
harness between C-01 (terminal No. 17)
combination meter connector and C-121
(terminal No. 22) engine-ECU connector.

• Check output line for open/short

circuit.

NO :

Repair or replace the connector.

AK301236

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12 11 10

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18 17

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9 8 7

Harness side connector

Connector: C-01

C-01

<L. H. drive vehicles>

<R. H. drive vehicles>

C-01

AC

AK501995

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AB

Connector: C-121

C-121 (GR)

C-121 (GR)

Harness side connector

<L. H. drive vehicles>

<R. H. drive vehicles>

TROUBLESHOOTING

MULTIPORT FUEL INJECTION (MPI)

13A-249

STEP 9. Connector check: C-208 ignition switch
connector

Q: Is the check result normal?

YES :

Go to Step 10 .

NO :

Repair or replace the connector.

AK305251

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6

Harness side connector

Connector: C-208

C-208

<L. H. drive vehicles>

<R. H. drive vehicles>

C-208

AB

TROUBLESHOOTING

MULTIPORT FUEL INJECTION (MPI)

13A-250

STEP 10. Check harness between C-01 (terminal
No. 9) combination connector and C-208
(terminal No. 2) ignition switch connector.

NOTE: Before checking harness, check intermediate
connectors C-23 <L.H. drive vehicles>, C-211and
C-214, and repair if necessary.

• Check power supply line for damage.

Q: Is the check result normal?

YES :

Go to Step 11.

NO :

Repair the damaged harness wire.

AK301236

6 5 4 3 2 1

12 11 10

15

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14 13

21

18 17

19

20

9 8 7

Harness side connector

Connector: C-01

C-01

<L. H. drive vehicles>

<R. H. drive vehicles>

C-01

AC

AK305251

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6

Harness side connector

Connector: C-208

C-208

<L. H. drive vehicles>

<R. H. drive vehicles>

C-208

AB