What does an oil control valve do on a 2000 Toyota Echo?

The oil control valve (OCV) on a 2000 Toyota Echo regulates the flow of oil to the variable valve timing (VVT) system, which optimizes engine performance and efficiency. It adjusts the timing of the intake and exhaust valves based on engine speed and load, improving power delivery and fuel economy. If the OCV malfunctions, it can lead to poor engine performance, decreased fuel efficiency, and increased emissions. Regular maintenance and timely replacement of a faulty OCV are essential for maintaining optimal engine operation.