The P0048 Code is an important thing for the automobile engineer. You need to know the real meaning of the code what you will find from the car manufacturer. Do not drive the car with the car engine problem. You should not use ever the general meaning. The general meaning of the code is p for Powertrain Code Problem is related engine, transmission and emissions systems. 0 for SAE – Generic. 0 for Fuel And Air Metering. 4 for BBV Sensor Circuit Low Voltage and 8 for PCM Stack Overrun. However, if you have all machines and proper experience, you can try to solve the car engine problem.