The P20F3 Code is a problem code what describes about the problem from the car engine and it is related with the powertrain. The meaning of the code is found online as automobile dictionary meaning but it is not necessary to use. Get the genuine meaning of the code what you find as real meaning set by the manufacturer. It is easy to solve the problem by an automobile engineer. The general meaning of the code is found online and you have nothing to worry. Fuel use was amplified, rushing was seriously conceded, and the loss of engine vacuum led to a hazardous loss of braking backing when the P20f4 code system was in 4-cylinder mode.