The automobile dictionary meaning of the car engine P2482 Code is found online. The automobile dictionary meaning of the car engine code P2482 is p for Powertrain Code Problem is related engine, transmission and emissions systems. 2 for MFG – Manufacturer Specific. 4 for Transmission. 8 for Exhaust Gas Recirculation System Valve 1 and 2 for A/C System High Pressure High Temperature. You need to use this meaning of the code when you do not know the real meaning of the car engine code. If you are not have any idea about the car engine problem, you should not try to fix the car engine.