The automobile engine P1457 Code helps to fix the car engine and you may face terrible problem in the car engine. The powertrain problem is not difficult to solve. You can use automobile dictionary meaning to solve the car engine if you have not found the right meaning of the code. The automobile dictionary meaning is p for Powertrain Code Problem is related engine, transmission and emissions systems. 1 for MFG – Manufacturer Specific. 4 for Transmission. 5 for TP Sensor Learn Not Complete and 7 for Cruise Inhibit Control Circuit. For solving the car engine’s powertrain, it is not necessary to remove any thing from the car engine.