What is a camshaft solenoid?

A camshaft solenoid is an electromechanical device in an internal combustion engine that controls the timing of the camshaft's rotation, specifically in variable valve timing (VVT) systems. It regulates oil flow to the VVT mechanism, allowing for adjustments in valve timing to enhance engine performance, fuel efficiency, and emissions control. By optimizing the timing of the camshaft's opening and closing of the engine valves, the solenoid helps improve engine responsiveness across different RPM ranges.