When the car engine makes trouble, do not drive the car until the car engine problem is solve. The B2119 Code may appear if the body of the engine has the problem. The letter B denotes the body of the engine. The body of the engine is easy to solve and no need to change any machine/component for solving the problem of the engine. The dictionary meaning gives you such general information for solving the problem. Without getting the real meaning of the code, it is difficult to solve the problem from the car engine. Manufacturer gives the meaning of the code and meaning are not remain same.