The car engine P2758 Code is important thing for solving the car engine. There are presently two major types of cylinder deactivation process used nowadays what depends on the type of car engine. The car engine P2758 code is developed for the pushrod design which uses solenoids to change the oil pressure transported to the lifters. In their distorted state, the lifters are incapable to raise their companion pushrods under the valve rocker arms, subsequent in valves that cannot be motivated and remain closed. You should be careful if you want to fix the car engine by yourself and read the manual first.