The engine P0027 Code is an important for solving the problem from the car engine. The meaning of the code is found online but that meaning of the code is not helpful. You have to find the meaning of the code according to the manufacturer of your car. Do not use the automobile dictionary meaning of the code for solving the car engine problem. This meaning of the code gives you some knowledge about the problem but it is not necessary to follow. Do not try to fix the car engine problem if you do not know how to fix the car engine and if you do not have all machines for solving the car engine.