The car engine P3442 Code provides information of the car engine problem by many meanings of the car engine code and right meaning of the code helps here most for your car engine’s problem identification and its solution. The right meaning of the code is the best thing but if it is not found, then you need to use the general meaning of the code. The general meaning of the code is p is Powertrain Code Problem is related engine, transmission and emissions systems. 3 is SAE – Generic. 4 is Transmission. 4 is BBV Sensor Circuit Low Voltage and 2 for A/C System High Pressure High Temperature.