The automobile dictionary meaning of the engine P205A Code is available and for this car engine code, the automobile dictionary meaning is P for Powertrain Code – Problem is related engine, transmission and emissions systems. 2 for MFG – Manufacturer Specific. 0 for Transmission. 5 for BBV Sensor Circuit Low Voltage and A for TFP Valve Position Switch-Drive Without Drive Ratio. The engine code P205A OBD2 may also be caused by burdens earlier down the line. For example, a muted MAF sensor might be causing the car to overcorrect in its fuel-trim adjustments. So, oxygen sensors are probable to report fuel combination problems.