This sensor basically measures the amount of air entering your engine. It doesn’t just guess – it calculates the mass of the air, which is the key thing the engine computer needs to know. It does this using a tiny heated wire inside the sensor. As air flows past it, the wire cools down. The sensor measures how much electricity it needs to keep that wire at a constant temperature, and that tells it exactly how much air is coming in. It sends that information as an electrical signal. The engine computer uses this air mass information, along with data from other sensors, to figure out the correct amount of fuel to inject. It’s a critical part of the fuel injection system. Think of it as the first step in the whole process – if the computer doesn’t know how much air is coming in, it can’t accurately determine how much fuel to use. It works with pretty much all modern fuel – injected vehicles, both gasoline and diesel. If this sensor goes bad, things can get messy. You’ll likely notice if it is failing. You might experience poor fuel economy, rough idling, hesitation during acceleration, or even a check engine light. Sometimes it’ll feel like your engine is just… struggling. It’s not something you can really ignore for long. A bad reading can cause the engine to run too rich or too lean, which can damage other components over time, like your catalytic converter. You can find these sensors pretty easily, a lot of people order them online – Fixparts Online has a good selection, for example. Replacing it isn’t usually a super difficult job, but it's definitely one of those things where getting the right part is essential. Affordable and reliable: Hot Film Mass Air Flow Sensor (MPN 0986280703) has a 12-month warranty!

About Bosch

Bosch is a global leader in automotive technology from Germany, celebrated for its innovative products and high-quality components. Based in Germany, Bosch drives advancements in vehicle safety and efficiency worldwide.

Why Choose Bosch?

• Bosch parts are known for being reliable and lasting a long time, saving you money in the long run. • They work well right out of the box, so you can get back on the road quickly and easily. • Bosch invests a lot in research and development, meaning they’re always improving their parts with the latest technology. • Whether you drive a newer car or an older one, Bosch has a wide range of parts to fit your vehicle. Bosch delivers excellence, FixParts Online delivers to your door.