The meaning of the P20F2 Code is important thing for solving the car engine problem. As the code has started with the P, it means that the problem of the car engine is related with the powertrain. The automobile dictionary meaning of the P20F2 code is P for Powertrain Code Problem is related engine, transmission and emissions systems. 2 for MFG – Manufacturer Specific. 0 for Fuel And Air Metering. F for BBV Sensor Circuit Low Voltage and 2 for A/C System High Pressure High Temperature. You should not try to solve the car engine problem if you do not know how to fix the problem or you do not have all necessary machines for solving the car engine problem.