Emission Control (Mfi - T/c) - Lancer Evolution: Other Mitsubishi Lancer X

VACUUM HOSE CHECK

1. Using the VACUUM HOSE ROUTING diagram as a guide, check that the vacuum hoses are correctly connected.
2. Check the connection of the vacuum hoses, (removed, loose, etc.) and confirm that there are no sharp bends or damage.

MASS AIRFLOW SENSOR CHECK

To inspect the sensor, refer to DIAGNOSTIC TROUBLE CODE CHART .

No. 1 INTAKE AIR TEMPERATURE SENSOR CHECK

To inspect the sensor, refer to DIAGNOSTIC TROUBLE CODE CHART .

BAROMETRIC PRESSURE SENSOR CHECK

To inspect the sensor, refer to DIAGNOSTIC TROUBLE CODE CHART .

ENGINE COOLANT TEMPERATURE SENSOR CHECK

To inspect the sensor, refer to DIAGNOSTIC TROUBLE CODE CHART .

THROTTLE POSITION SENSOR CHECK

To inspect the sensor, refer to DIAGNOSTIC TROUBLE CODE CHART .

CRANKSHAFT POSITION SENSOR CHECK

To inspect the sensor, refer to DIAGNOSTIC TROUBLE CODE CHART .

Scheme 16

Scheme 17

Scheme 18

Scheme 19

1. Connect a hand vacuum pump to nipple (A) of the evaporative emission canister and evaporative emission ventilation solenoid assembly.
2. Connect a plug to nipple (B) of the evaporative emission canister and evaporative emission ventilation solenoid assembly.
3. Check air tightness by applying a vacuum with voltage applied directly from the battery to the evaporative emission ventilation solenoid and without applying voltage. BATTERY VOLTAGE SPECIFICATIONS Battery voltage Normal condition Applied Vacuum maintained Not applied Vacuum leaks
4. Measure the resistance between the terminals of the solenoid. Standard value: 17 - 21 ohms [at 20°C (68°F)]

Scheme 20

Required Special Tool

1. MB991953: Oxygen Sensor Wrench