Do not know the meaning of the engine P0229 Code, then you can follow the automobile dictionary meaning of the code what is found online. The general meaning of the code is available online and but it is not used for solving the car engine problem. The correct meaning of the code is found in car engine manual. if you know the name of the car, it is easy to find the real meaning of the engine code and you have to find the cause of the engine problem. A test drive is necessary for solving the car engine problem.