The automobile dictionary meaning of the car engine P0770 Code is not helping thing. You must look for the real meaning of the code 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. 7 for Vehicle Speed Output Circuit and 0 for Transmission Engaged At High Throttle Angle. If you do not know the process of solving the car engine, you must not try to fix the car engine. Otherwise, new problem in the car engine may started.