Description of the engine P247B Code helps to solve the car engine problem. Testing the car engine is necessary to find the real cause of the engine problem. When fuel use was increased, acceleration was seriously bargained, and the loss of engine vacuum led to a hazardous loss of decelerating assist when the engine P247b code method was in 4 cylinder mode. In addition to these issues, while the company planned a hydraulically controlled system that could be switched from within the car, the version they implemented had to be manually different in the engine section using hand tools. Take the car for a test drive when the car engine is fixed.