The engine P256B Code does not help the car engine if you find the wrong meaning of the code. There are some reasons and symptoms what you need to analysis. If you do not analysis all symptoms, then it is difficult to know the real cause of the car engine problem. The car engine problem should be fixed as soon as possible if you want to drive the car safely. Do not follow wrong meaning of the code if you do know the right meaning of the code. For using the wrong meaning of the car code, new problem may initiate.