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. Secure your purchase: Hot Film Mass Air Flow Sensor (MPN 0281007558) includes a 12-month warranty!

About Bosch

Robert Bosch GmbH is a global leader in automotive technology, offering high-quality parts and systems that enhance vehicle efficiency, safety, and reliability.

Why Choose Bosch?

• Bosch parts are known for being reliable and lasting a long time, which can save you money on repairs in the future. • They’re a leading supplier to car manufacturers, so you’re getting the same quality parts used in many new vehicles. • Bosch invests a lot in research and development, meaning their parts often have the latest technology for better performance. • You can find Bosch parts for a wide range of vehicles, from older models to the newest cars and trucks. Drive with confidence – choose Bosch parts at FixParts Online.