The engine C1284 Code is meaningful and with using the correct meaning of the code, do not think to fix the car engine problem. You need to find the real meaning of the code and it is associated with the model and manufacturer. The general meaning of the code is found online . Chassis problem of the car engine is easy to fix. There are two key kinds of cylinder deactivation process used, liable on the type of engine. The engine C1284 code for the pushrod strategy which uses solenoids to change the oil pressure carried to the lifters. The lifters are incapable to elevate their buddy pushrods under the valve rocker arms, resultant in valves that cannot be stimulated and remain closed.