The definition of the car engine B2348 Code is found online but it is not necessary to use. The general meaning of the code may not suit well for your car engine. That is why, you should rely on the manufacturer meaning what depends on the brand and model number of the car. Do not use the common meaning of the code for solving the car engine. You should keep studying the real information if you are an automobile engineer and you know how to solve the car engine problem. Read the manual of the car for retrieving more information.