With electronic valve operation, it will be possible to control engine speed by regulating valve lift. (en.wikipedia.org)
Once more fully developed, electronic valve operation will yield even more benefits. (en.wikipedia.org)
These engines include a 2.4 - liter gasoline, a 2.5 - liter turbodiesel, and a new 2.4 - liter turbodiesel with electronic valve timing. (princetonmitsubishi.pantilimitsubishi.com)