A method for controlling an engine having both an electronically
controlled inlet device, such as an electronic throttle unite, and an
electronically controlled outlet device, such as a variable cam timing
system is disclosed. The method of the present invention achieves
cylinder air charge control that is faster than possible by using an
inlet device alone. In other words, the method of the present invention
controls cylinder air charge faster than manifold dynamics by
coordination of the inlet and outlet device. This improved control is
used to improve various engine control functions.