The general meaning of the P2BA8 Code is common and you will get the common meaning of the code online. The genuine meaning of this P2BA8 code is easy to get if the engineer knows the brand name and model number of the car. The general meaning of the of the engine code is p – Powertrain Code – Problem is related engine, transmission and emissions systems. 2 for MFG – Manufacturer Specific. B for Transmission. A for BBV Sensor Circuit Low Voltage and 8 for Park/Neutral Position (PNP) Switch Circuit Engine. However, this is a common thing for getting idea about the car engine related with the engine for the code area.