The car engine problem is found in the car engine by the engine P0146 Code and getting the real meaning of the code is necessary to know more about the engine problem. Like the all car engines, this car engine process services especially developed hydraulic lifters which is known as swapping roller followers for the engine P0146 code intake and finish valves. The lifters can be distorted by unfastening an inner locking pin. The locking pin is disconnected using solenoids to modify oil compression fed into the lifter. If you want to know more information, you can follow the automobile meaning of the engine code.