Circuit Description
WARNING: This page is about a different variant/trim than selected.
In order to improve the engine performance at both high and low engine speed, the VVTL-i system varies valve lift using the standard cam and high lift cam. This provides the high power engine performance as well as an emissions reduction and good fuel economy.
When the engine speed reaches 6,000 RPM, the ECM signals the OCV for VVTL-i to switch the effective cam from standard one to high lift one hydraulically.
The ECM controls the OCV to apply hydraulic pressure to the piston in the rocker arm and switches the rocker arm by locking the slipper for high speed.