The B1923 Code is associated with the car engine and meaning of the code is related with the manufacturer. The code is found in different car engines and meanings of the code for all cars are not same. That’s why, the basic meaning of the code does not work but if you want to know the real meaning of the code, you need to know the manufacturer name and model number. You should fix the car engine with the car automobile engineer. Do not try to solve the problem by yourself if you have no any idea related with the car engine problem.