Overheating can produce by a few dissimilar factors and it may make trouble in the car engine. The engine P1844 Code helps to know about the car engine problem and fix the problem of the car engine by the following meaning. When you test the car engine manually, you will get more information of the car engine problem. So, it helps to fix the car engine fast and drive the car safely. Overheating may put impact on the radiator fan which saves your engine cool is defective and create the car engine problem. Different problems may raise from one problem of the car and you should fix the problem.