Due to minor or major problem, a car engine may not work swiftly. Before anything becomes serious in your car engine, you need to test the car engine and find out the real cause of the car engine problem what is very important. The engine P1437 Code is set on the area of the car engine where the car engine’s problem is located. For every area of the car engine, engine code is set. You must fix the car by the right meaning of the code. If you cannot fix the car engine in your place, you must allow an automobile repair shop to repair your car engine.