The 2001 Nissan Sentra is a fairly advanced automobile in terms of its electronic systems and its handling and comfort characteristics. It is important to maintain your electrical and engine management systems if you want to keep the engine running smoothly. The Nissan Sentra’s air mass meter is designed to detect the amount of air that is flowing in to the engine and is usually position near the air intake. If your air mass meter has been damaged or is failing for some reason your engine is not going to be able to detect the volume of air flowing so it will not be able to inject the proper amount of fuel. If you suspect the air mass meter may be failing, you can replace it with a high quality Sentra Fuel Injection Corp. air mass meter. A Fuel Injection Corp Sentra air mass meter is designed to exceed OEM specifications. Because it is made by Fuel Injection Corp., you can be certain that this air mass meter will last at least as long as your stock component. Be sure you are working in a clean, dry environment when you replace your 2001 Sentra’s air mass meter as dirt and moisture could impede functionality. We know you completely deserve superlative technical assistance while shopping for dependable auto parts for a car or truck. That's why we maintain an always-online sales support call bureau to assist you with your calls. If you spot a better price somewhere else, let us know - we always beat any advertised price for auto parts.