This engine P2837 Code is the best the explanation of the car engine problem. Do not solve the car engine by an untrusted automobile engineer or any people. Even you should not try to fix the car engine if you do not know how to check and solve the car engine problem. If the car engine problem is not solved, the car engine may face different problems and it may be more difficult to solve or it can be expensive too. The car engine should be fixed by an expert automobile engineer. Because he knows well the process of solving the car engine well.