This little guy basically measures the amount of oxygen left in your exhaust gases after combustion. It doesn’t just give a simple “yes” or “no” though, it gives a voltage reading. A higher voltage usually means there’s more oxygen, a lower voltage means less. Modern engines use these readings constantly. There are usually several of these sensors – one upstream of the catalytic converter, and one or more downstream. It's a critical part of your engine’s computer system, the ECU. The ECU uses the signal from this sensor to fine – tune the air – fuel mixture going into your engine. It’s constantly making small adjustments to ensure everything burns as cleanly and efficiently as possible. It acts like a shield, helping protect the catalytic converter from overheating, and ensuring it works properly. If this sensor goes bad, your engine can run too rich (too much fuel) or too lean (not enough fuel). You’ll notice if it’s really bad – things like a check engine light, rough idling, poor gas mileage, or even trouble starting. Even a slightly off sensor can gradually hurt your fuel economy and performance. You can find these pretty easily, places like Fixparts Online carry a good selection, and getting a new one isn’t usually too expensive considering how much it affects everything else. It’s a small part with a big job, really. Choose quality: PRESSURE SENSOR (MPN 0281006278) is backed by a 12-month warranty!

About Bosch

With a heritage of innovation, Bosch provides dependable and efficient automotive components that set industry standards.

Why Choose Bosch?

• Bosch parts are known for lasting a long time, so you won't have to replace them often. • They're made with high-quality materials and tested thoroughly, meaning they perform reliably. • Bosch offers a wide range of parts, so you're likely to find what you need for almost any vehicle. • Mechanics and drivers around the world trust Bosch – it’s a name you can depend on. Bosch delivers excellence, FixParts Online delivers to your door.