Possible causes
– Faulty exhaust engine oil control valve circuit
– Exhaust engine oil control valve harness is open or shorted
– Exhaust engine oil control valve circuit poor electrical connection
– Exhaust engine oil control valve harness is open or shorted
– Exhaust engine oil control valve circuit poor electrical connection
Symptoms
– Engine Light ON (or Service Engine Soon Warning Light)
P1025 MITSUBISHI Description
The exhaust engine oil control valve change the phase angle to operate the MIVEC system in the advance or retard side in accordance with the signals from the Engine Control Module (ECM).