OCV (Oil Control Valve)
OCV (Oil Control Valve)ECM controls the position of a spool valve by the duty signal from ECM, and is adjusting the oil supply to advance and retard of VVT.
(A) Advance (Initial Position)
The spool valve moves to right-hand side, the vane pump rotates to advance side.
(B) Retard
The spool valve of OCV moves to left-hand side, the vane pump rotates to retard side.