Mitsubishi Lancer Evolution VIII MR Technical Information download pdf (Page 59)

13A-20

MPI – TROUBLESHOOTING

Measure at the inter-cooler water

spray relay connector C-220

• Undo the connector, and

measure on the harness side

•Voltage across earth 3 and 1

(ignition switch: ON)

OK: battery voltage

Measure at the engine ECU

connector C-50

• Undo the connector, and

measure on the harness side

•Voltage across earth 56

(ignition switch: ON)

OK: battery voltage

Check connector: C-31

Inspect the harness between the

inter-cooler water spray relay and

the inter-cooler water spray motor

• Check if the power supply wire

is cut, has short circuited, or is

damaged

Inspect the harness between the

inter-cooler water spray motor

and earth

• Check if the earth wire is cut, or

damaged

Check connectors C-209,

C-210, C-201 and C-208

Inspect the harness between the

inter-cooler water spray relay and

the ignition switch

• Check if the power supply wire

is damaged

Check connectors C-22 & C-50

Inspect the harness between the

inter-cooler water spray relay and

the engine ECU

•Check if the signal wire is

damaged

Check connector: A-34

Replace the engine ECU

Check the inter-cooler water

spray motor (Ref Section 15:

Intake/Exhaust)

Check connectors C-209, C-210, C-201 and C-208

Inspect the harness between the inter-cooler water spray

relay and the ignition switch

• Check if the power supply wire is cut or has short circuited

Continued from the previous page

Check the ignition switch (Ref to Section 54)

Check connectors C-22 and C-208

Inspect the harness between the inter-cooler water spray

relay and the engine ECU

• Check if the signal wire is cut or has short circuited

Repair

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Mitsubishi Lancer Evolution VIII MR Technical Information Page 59

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