The general or automobile meaning of the car engine P3482 Code is found online and the meaning of the car engine code is necessary to use for fixing the car engine properly. The real meaning is more important than the automobile dictionary meaning. The general meaning of the code is p for Powertrain Code Problem is related engine, transmission and emissions systems. 3 for SAE – Generic. 4 for Transmission. 8 for Exhaust Gas Recirculation System Valve 1 and 2 for A/C System High Pressure High Temperature. However, you must look for the real meaning of the code first and then you may use general meaning if the real meaning is not available.