The engine P0919 Code is important thing but it is not very important thing if correct meaning of the engine code is not found. When you have no the real meaning of the car engine code, you may use automobile dictionary meaning what gives general information only and it may not match with the real meaning of the code. The automobile dictionary meaning of the code is p for Powertrain Code Problem is related engine, transmission and emissions systems. 0 for SAE – Generic. 9 for Fuel And Air Metering (Injector Circuit Malfunctions Only). 1 for Low Coolant Circuit and 9 for Kick-Down Switch Failed Short.