This little guy listens for engine knock – that's a pinging or rattling sound, almost like marbles inside the engine. It's a vibration sensor, really. It picks up those specific frequencies that indicate the fuel – air mixture is detonating instead of burning smoothly. It then sends a signal to the engine control unit, your car's computer. The computer uses that signal to adjust the ignition timing – when the spark plugs fire. Basically, it retards the timing a bit. Think of it like this: if the engine is starting to knock, the computer wants to slow things down a little to prevent damage. It's a crucial part of keeping everything running efficiently and preventing serious problems. It's a feedback system; the sensor tells the computer what’s happening, and the computer makes adjustments. It’s really important because uncontrolled engine knock can destroy an engine pretty quickly. It's like hitting your engine with a hammer repeatedly. The knock sensor acts like a shield, preventing that damage by telling the computer to adjust. If it fails, the engine could run lean and overheat, or experience significant internal wear. You’ll notice if a knock sensor goes bad usually through a check engine light, possibly accompanied by reduced power or poor fuel economy. Sometimes, you might actually hear the knocking sound itself, especially under load or acceleration. You can find these pretty easily online, places like Fixparts Online carry them, but it’s best to get it diagnosed properly first to make sure that is the issue. A warranty you can count on: Knock Sensor (MPN ADG07291) has a 12-month guarantee!

About Blue Print

Offering exceptional aftermarket solutions, Blue Print is synonymous with reliability and precision for global automotive needs.

Why Choose Blue Print?

• We offer a really wide range of parts, covering most popular cars. You're likely to find what you need with us. • Blue Print parts are made to the same quality as original equipment, so you get a reliable product without the high price. • We're constantly adding new parts to our range, keeping up with the latest car models. • We work with garages and car owners alike, offering parts you can trust for all kinds of repairs and maintenance. Blue Print – trusted quality, available at FixParts Online!