This little guy basically measures the temperature of the air coming into your engine. It sends that information as an electrical signal to your car’s computer – what we usually call the ECU. That computer then uses that reading to adjust things like the air – fuel mixture and ignition timing. It's a pretty simple job, really – just reporting the temperature. Think of it like this: your engine needs the right mix of air and fuel to run efficiently. The ECU uses data from a bunch of sensors to figure out that perfect mix. The air temperature sensor is one of those key pieces of information. It helps the computer understand how dense the air is – cold air is denser, warm air is less so. That affects how much fuel needs to be added. It also plays a part in things like how your air conditioning performs. It’s usually located somewhere in the intake system, so it gets a good reading of the incoming air. If this sensor goes bad, your engine won’t run its best. You’ll probably notice if it's really off because your gas mileage will likely drop. You might also see the check engine light come on. It can cause hard starting, rough idling, or even stalling in some cases. It doesn't usually cause catastrophic damage, but it can definitely lead to performance problems and higher fuel costs. It acts like a shield against inefficient operation. You can usually find a replacement pretty easily, places like Fixparts Online carry them, and it's generally a fairly straightforward repair. Buy risk-free: Air Temperature Sensor (MPN 171621) is covered by a 3 year manufacturer guarantee!

About Febi

Ferdinand Bilstein is a leading global supplier of aftermarket spare parts, offering an extensive range of high-quality components for passenger and commercial vehicles.

Why Choose Febi?

• Febi parts are made to the same standards as original equipment, so you get reliable quality. • We offer a really wide range of parts, covering most makes and models – meaning you can likely find everything you need in one place. • Febi has been around for over 75 years, so we know a thing or two about auto parts and what mechanics need. • Our parts are priced fairly, giving you a great balance between quality and cost. Drive with confidence – choose Febi parts at FixParts Online.