The engine P2048 Code is found from the car engine but without getting the correct meaning of the code, the engine code is not helpful. The automobile manufacturer gives the right meaning of the code and you will get the general meaning of the code from online. The automobile or general meaning of the car engine code is p for Powertrain Code Problem is related engine, transmission and emissions systems. 2 for MFG – Manufacturer Specific. 0 for Fuel And Air Metering. 4 for BBV Sensor Circuit Low Voltage and 8 for PCM Stack Overrun. The right meaning of the code helps to solve the car engine problem.