OIL CONTROL VALVE - SUBARU (FORESTER XT LEGACY GT STI)

Oil Control Valve is the term for the solenoid valves that regulate the oil pressure driving the intake cam sprockets to clock themselves relative to the camshaft. In one position the OCVs will pressurize the system to advance the cam timing, another position to retard the timing, and the final position to lock the sprocket in place.

Does left or right side.