You need to fix the car engine properly and you should test the car engine by an engine code reader. The car engine P2481 Code is found as a result after the test. The meaning of the code helps to fix the car engine and here the real meaning of the code gets higher priority. There are now 2 major types of cylinder deactivation ways used what depending on the type of car engine. The car engine P2481 code for the pushrod design which usages solenoids to modify the oil compression carried to the lifters. In their collapsed state, the lifters are incapable to elevate their companion pushrods beneath the valve rocker arms, resulting in valves.