The engine problem is a serious problem and by the meaning of the engine P0768 Code, the problem of the car engine can be fixed properly. The car engine code has many meanings and you will allow only the right meaning what is provided by the car manufacturer. The automobile dictionary meaning of the code is p for Powertrain Code Problem is related engine, transmission and emissions systems. 0 for SAE – Generic. 7 for Auxiliary Emission Controls. 6 for Control Module Throttle Actuator Position Performance and 8 for PCM Stack Overrun. Do not drive the car with the engine problem.