The genuine meaning of the P20E7 Code helps for solving the car engine problem and it is necessary to know how to fix the problem. If you have machines and experience, you can fix the car engine problem if you know the genuine meaning of the code. If you have the manual of the car engine, you can easily solve the car engine problem. Because the manufacturer must put the meaning of the code in manual. Do not use dictionary meaning of the code for solving the car engine problem. The dictionary meaning of the code does not help for solving the problem.