{"product_id":"facet-9-3173-ignition-knock-detonation-sensor","title":"Facet 9.3173 Ignition Knock (Detonation) Sensor","description":"\u003ch2\u003eReliable Ignition Knock Sensor for Audi and Volkswagen Models\u003c\/h2\u003e\u003cp\u003eThe Facet 9.3173 ignition knock sensor is designed to detect engine knocking and detonation in select Audi and Volkswagen vehicles. This sensor helps maintain optimal engine performance by providing accurate feedback to the engine control unit.\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003eCompatible with Audi A3, Volkswagen Golf R, GTI, Jetta, Passat, Eos, and TT models\u003c\/li\u003e\n\u003cli\u003ePart number 9.3173 ensures precise fit and function\u003c\/li\u003e\n\u003cli\u003eMonitors engine knock to prevent damage and improve efficiency\u003c\/li\u003e\n\u003cli\u003eDirect replacement sensor for emission control systems\u003c\/li\u003e\n\u003cli\u003eDurable construction for consistent performance under varying conditions\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eProduct Details and Functionality\u003c\/h2\u003e\u003cp\u003eThe Facet 9.3173 ignition knock sensor is an essential component in the emission control system, specifically designed to detect engine detonation or knocking. By sensing vibrations caused by abnormal combustion, it sends signals to the engine control unit to adjust ignition timing accordingly. This helps protect the engine from potential damage and supports smoother operation. Compatible with multiple Audi and Volkswagen models, including the A3, Eos, Golf R, GTI, Jetta, Passat, and TT, this sensor meets OEM specifications for reliable performance.\u003c\/p\u003e\u003ch2\u003eCommon Applications and Issues Addressed\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003ePrevents engine knocking and pinging in Audi and Volkswagen vehicles\u003c\/li\u003e\n\u003cli\u003eHelps reduce engine misfires and rough idling\u003c\/li\u003e\n\u003cli\u003eSupports emission control by ensuring proper combustion\u003c\/li\u003e\n\u003cli\u003eImproves fuel efficiency by optimizing ignition timing\u003c\/li\u003e\n\u003cli\u003eReduces risk of engine damage due to detonation\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eInstallation Notes and Tips\u003c\/h2\u003e\u003cp\u003eWhen installing the Facet 9.3173 ignition knock sensor, ensure the engine is cool and the battery is disconnected to avoid electrical hazards. Locate the sensor on the engine block as specified in the vehicle’s service manual. Use appropriate tools to remove the old sensor and install the new one without over-tightening. Verify sensor connections are secure before reconnecting the battery and starting the engine.\u003c\/p\u003e\u003ch2\u003eQuality Assurance and Warranty\u003c\/h2\u003e\u003cp\u003eFacet ignition knock sensors are manufactured to meet strict quality standards, ensuring durability and accurate performance. While specific warranty details for part number 9.3173 may vary, Facet products typically come with a limited warranty against defects in materials and workmanship. Consult the product documentation or supplier for exact warranty terms.\u003c\/p\u003e","brand":"Facet","offers":[{"title":"Default Title","offer_id":51915829117109,"sku":"CHMT-9.3173","price":48.7,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0628\/1442\/1173\/files\/FT_93173_Fro.jpg?v=1774998205","url":"https:\/\/www.partcatalog.com\/products\/facet-9-3173-ignition-knock-detonation-sensor","provider":"PartCatalog","version":"1.0","type":"link"}