The diagnosis P212B Code is related with the engine and it has right meaning what is set by the car manufacturer. You may find other meanings of the engine code what are form different manufacturers or automobile meaning. The automobile meaning of the code is available online and it is not very helping for solving the car engine. Without having proper knowledge, it is difficult to solve the car engine problem. You have to use some hand tools for solving the engine problem. Powertrain problem is not a serious problem and it should be fixed as soon as possible. Do not ignore the problem although it is minor problem.