Function: The variable valve timing solenoid is a component of the variable valve timing system, it works on the pressure of and can advance or retard the cam position to provide the correct engine performance. Each camshaft is equipped with a VVT solenoid, which is able to change the supply of pressure of the camshaft depending on the engine speed and load. A working VVT solenoid improves performance and fuel efficiency. When you notice your vehicle exhibiting symptoms: check engine light on, dirty engine, rough engine idling and decreased fuel efficiency. It showed that the solenoid valve is not working well. The VVT solenoid fails or is stuck, this can cause poor fuel economy and lead to premature wear or complete failure of the timing chain and gear. At this time, you need to replace your camshaft variable valve timing solenoid for optimal engine performance.100% Brand New Part Number: 11367587760 11367604292 1922V9 1922R7 V758776080. Interchange Number: 11367566652, 11367587760,