The automobile dictionary meaning of the engine P2046 Code is found online and it is important. The automobile dictionary meaning provides general information. The general meaning of the P2046 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. 4 for BBV Sensor Circuit Low Voltage and 6 for Cruise Control System – Vehicle Accel Too High. However, if you allow an automobile engineer to fix the car engine, then he knows how to fix the car engine and he has the right the real meaning of the code.