The engine code is available from the different manufacturers for the P20D2 Code and it is also available as from automobile dictionary what gives only general information. If you do not know how to solve the car engine and you do not know the meaning according to your car manufacturer, you cannot solve the car engine. You should remove the problem and that is why; expensive machines, experience and meaning of the manufacturer are necessary. Do not apply the dictionary meaning of the code for solving the car engine problem. You may face more problem and after solving the problem drive the car for test.