The car engine needs to solve the car engine problem and the engine P0234 Code is found in many car engine and meaning of the engine is used for solving the car engine. The automobile meaning of the code is p for Powertrain Code Problem is related engine, transmission and emissions systems. 0 for SAE – Generic. 2 for BBV Sensor Circuit Low Voltage. 3 for BBV Sensor Circuit Low Voltage and 4 for Transmission. The powertrain problem is found on the car engine and at the cheap rate, the car engine is easy to solve. Do not drive the car what has engine problem.