Hi all,
I have a check engine light ON and the system spits out code P0410. I know this system consists mainly of the air pump, check vavle, and solenoid and works just on startup when engine is cold / below certain temperature. What I don't get is why the CEL comes on in the middle of driving when the engine is warm and SAIS is not active??? I cleaned the check vallve and it seems to work fine (lets air through one way but not the other). Any ideas?