The car engine should be fixed by correct meaning of the car engine code. The engine P1178 Code is found on the car engine code reader by a testing the car engine and for solving the car engine, you need to find the real meaning of the code but when the real meaning of the code is not found, then you will use automobile dictionary meaning of the code and it is p for Powertrain Code Problem is related engine, transmission and emissions systems. 1 for MFG – Manufacturer Specific. 1 for Transmission. 7 for Vehicle Speed Output Circuit and 7 for Cruise Inhibit Control Circuit.