The engine P20BB Code is related with the automobile engine and for the engine problem the code comes. It is important to reparation the engine and then the code will not be notice again. The engine code reader comes the problematic area when it abortive to check the area and then the code derives for that area. The dictionary meaning of the code is not necessary for solving the car engine problem. Do not drive the car with the faulty engine. That is why, it is necessary to get correct solution for the car engine. If you do not get correct information, it is not possible to solve the problem.