You need to know the cause of the car engine problem and of the car engine P1214 Code. It becomes easier to solve the car engine problem properly. Follow the right process of solving the car engine. There are presently two major types of cylinder deactivation process used today what depend on the kind of engine. Th engine P1214 code for the pushrod design which usages solenoids to modify the oil pressure carried to the lifters. In their distorted state, the lifters are unable to raise their mate pushrods under the valve rocker arms, subsequent in valves that cannot be activated and remain shut.