The Mitsubishi MIVEC Engine uses a variable valve timing system. MIVEC technology helps to increase fuel efficiency and decrease emissions while maintaining engine output. The MIVEC system uses a cam profile to change the lift of the intake and exhaust valves to improve both low speed and high speed performance. Low-speed mode strengthens the flow to the cylinder to improve fuel economy and lower emissions. High-speed mode opens the valves longer to achieve high engine output.
It is essential to have the scheduled valve adjustment performed on your vehicle to ensure proper system operation.