The general meaning of the engine C1446 Code is necessary to know and it has general meaning but do not use this meaning. The general meaning is automobile dictionary meaning. There are presently 2 main types of cylinder diffusion method used today, depending on the type of engine. The engine C1446 code for the pushrod design which uses solenoids to modify the oil compression transported to the lifters. In their collapsed state, the lifters are incapable to raise their companion pushrods under the valve rocker arms, resultant in valves that cannot be activated and remain closed. Do not drive the car until the car engine is ok.