The general meaning of the P2A02 Code is not necessary to know for an automobile engineer but general meaning is necessary for general people for getting the idea about the problem. You can easily retrieve the general meaning of the code using the Google search engine or any online search tool. However, the genuine meaning of the code depends on the manufacturer and model of the car engine. So, the automobile engineer must get that meaning for solving the car engine problem. Do not drive the car until you get that car fixed. You should make the car problem fixed properly.