The B2118 Code is related with the engine and due to the engine problem, the code comes. It is necessary to know the detail information about the code. The meaning of the code is necessary and you will get the real meaning of the code from the manufacturer what depends on the model of the car. If you do not know anything about the car engine code, you cannot solve the problem from the car engine. The real meaning of the code is very important for solving all issues from the car engine. Do not drive the car until the car problem is fixed.