The engine P0240 Code is found in the car engine code reader for the problem of the car engine. The engine needs proper solution and real meaning of the code is helpful for solving the car engine problem. The meaning of the engine code is found in general what is P for Powertrain Code Problem is related engine, transmission and emissions systems. 0 for SAE – Generic. 2 for BBV Sensor Circuit Low Voltage. 4 for BBV Sensor Circuit Low Voltage. 0 for Park/Neutral Position (PNP) Switch Circuit Engine Torque Signal Circuit. When the powertrain problems is solved, then the engine code will be disappeared.