Do not fix the car engine without getting the meaning of the code. The engine code is important thing and this engine P0878 Code’s meaning helps for fixing the car engine problem. If you face any more problem in the car engine, you will face more problem for daring the car with the car engine problem. By checking the car engine and symptoms, you can understand well about the problem and find the cause of the engine problem. When the car engine is ok, then you take it for a test drive. Do not accept the car if the problem still persists in the car engine.