The B1331 Code plays vital role for solving the problem of the engine. That is why, getting the correct meaning of the code is necessary to know. Reading the manual of the engine and car. The name of the manufacture and model number have momentousness for solving the problem. If you have all necessary tools and expensive machineries, you can start solving the problem well. Do not change anything from the engine. Because, the problem of the engine is associated with the body of the engine. So, you can easily solve the problem. After solving the problem, driving test of the car is necessary.