All of the following can be accomplished with variable valve timing while the engine is running EXCEPT ____.
A) altering engine displacement
B) changing valve overlap
C) changing cam timing
D) improving emissions

Question

Quizplus · Accepted Answer

Variable valve timing can change the duration and timing of valve lift, but it cannot alter the engine displacement, which is determined by the size of the cylinders and the length of the stroke.

All of the Following Can Be Accomplished with Variable Valve