P0519 Mitsubishi Idle Control System Malfunction
Possible causes
– Faulty Idle Air Control Valve
– Vacuum leak
– Idle Air Control Valve harness is open or shorted
– Idle Air Control Valve circuit poor electrical connection
– Vacuum leak
– Idle Air Control Valve harness is open or shorted
– Idle Air Control Valve circuit poor electrical connection
Tech description
Clean Idle Air Control Valve (IACV)
– Warm up Engine
– Remove the intercooler and set aside
– Disconnect the Mass Airflow sensor connector
– Cycle the key “On/Off” once
– Start the car and maintain engine speed between 1000-1500rpm
– Spray engine cleaner on the upper air-stream of the throttle chamber for approximately 10 seconds
– Step engine and let sit for 3 minutes
– Restart engine and maintain 1000 to 1500 rpms
– Spray Engine cleaner on the upper air-stream of the throttle chamber for approximately 10 seconds
– Turn engine off
– Reinstall intercooler and reconnect Mas Airflow sensor connector
– Operate car between 1000-2000rpms until no white smoke appears through tailpipe
– Turn ignition switch off and clear memory
Symptoms
– Engine Light ON (or Service Engine Soon Warning Light)
Mitsubishi Vehicle:Mitsubishi Aspire,Mitsubishi Airtrek,Mitsubishi Adventure,Mitsubishi Galant,Mitsubishi Tredia,Mitsubishi Strada,Mitsubishi RVR,Mitsubishi Pajero,Mitsubishi Outlander,Mitsubishi Montero Sport,Mitsubishi Mirage,Mitsubishi Libero,Mitsubishi Legnum,Mitsubishi Lancer,Mitsubishi i Miev,Mitsubishi GTO,Mitsubishi FTO,Mitsubishi Eterna,Mitsubishi eK,Mitsubishi Eclipse,Mitsubishi Diamante,Mitsubishi Delica,Mitsubishi Cordia,Mitsubishi Chariot,Mitsubishi Challenger,Mitsubishi Carisma,Mitsubishi Eclipse,Mitsubishi Endeavor,Mitsubishi Galant,Mitsubishi Lancer,Mitsubishi Outlander,Mitsubishi Raider,