{"product_id":"wpr-242-1155","title":"Walker Products Ignition Knock Detonation Sensor - 242-1155","description":"\u003ch2\u003eProduct Information\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eBrand:\u003c\/strong\u003e Walker Products\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePart Name:\u003c\/strong\u003e Ignition Knock Detonation Sensor\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDescription:\u003c\/strong\u003e Ignition Knock (Detonation) Sensor\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePart Number:\u003c\/strong\u003e 242-1155\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eNumber of Pieces:\u003c\/strong\u003e 1.0\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eProduct Overview\u003c\/h2\u003e\u003cp\u003eWalker Products Ignition Knock (Detonation) Sensors are OE Replacement components that monitor engine vibrations to detect knocking or detonation events. These sensors are a critical part of the engine control system, allowing the ECU to adjust ignition timing in real time to prevent spark knock—a condition that can cause internal engine damage, reduced fuel economy, and drivability issues. Walker Knock Sensors are engineered to match OE specifications for frequency range, sensitivity, and electrical output. Each unit is tuned to detect the specific resonant frequency of knock in a given engine platform, enabling precise spark retard when knock is detected. Built from high-quality, heat- and oil-resistant materials, these sensors are designed to endure the harsh conditions of the engine block and cylinder head. With exact OE fitment, Walker Knock Sensors install directly into the original threaded locations and connect using factory-style electrical terminals. Whether addressing a fault code (e.g., P0325, P0330), correcting timing issues, or replacing a failed sensor, Walker Knock Sensors restore proper knock detection, improve engine safety, and support optimal ignition performance across a wide range of gasoline applications.\u003c\/p\u003e\u003ch2\u003eFeatures\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003eExact OE Fit: Installs directly into original mounting locations using factory connectors and threads—no modifications required.\u003c\/li\u003e\n\u003cli\u003eBuilt for Harsh Environments: Engineered to resist heat, vibration, and oil exposure for long-lasting signal reliability.\u003c\/li\u003e\n\u003cli\u003eDetects Engine Knock: Monitors vibration frequencies to detect detonation and prevent pre-ignition engine damage.\u003c\/li\u003e\n\u003cli\u003eOE Replacement Sensitivity: Calibrated to match factory frequency response and output for seamless ECU integration and spark control.\u003c\/li\u003e\n\u003cli\u003eRestores Ignition Timing Accuracy: Supports optimal fuel efficiency, performance, and emissions by correcting spark advance during knock conditions.\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eWarranty\u003c\/h2\u003e\u003cp\u003e1 years\u003c\/p\u003e\u003ch2\u003eCountry of Origin\u003c\/h2\u003e\u003cp\u003eSpain\u003c\/p\u003e\u003ch2\u003eVehicle Fitment\u003c\/h2\u003e\u003cp\u003eSee the fitment table for engine, trim and other application details.\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003e2015 Audi R8\u003c\/li\u003e\n\u003cli\u003e2015 Audi RS5\u003c\/li\u003e\n\u003cli\u003e2014 Audi R8\u003c\/li\u003e\n\u003cli\u003e2014 Audi RS5\u003c\/li\u003e\n\u003cli\u003e2013 Audi RS5\u003c\/li\u003e\n\u003cli\u003e2012 Audi A8 Quattro\u003c\/li\u003e\n\u003cli\u003e2012 Audi R8\u003c\/li\u003e\n\u003cli\u003e2012 Audi S5\u003c\/li\u003e\n\u003cli\u003e2011 Audi A6 Quattro\u003c\/li\u003e\n\u003cli\u003e2011 Audi A8 Quattro\u003c\/li\u003e\n\u003cli\u003e2011 Audi R8\u003c\/li\u003e\n\u003cli\u003e2011 Audi S5\u003c\/li\u003e\n\u003cli\u003e2010 Audi A6 Quattro\u003c\/li\u003e\n\u003cli\u003e2010 Audi A8 Quattro\u003c\/li\u003e\n\u003cli\u003e2010 Audi Q7\u003c\/li\u003e\n\u003cli\u003e2010 Audi R8\u003c\/li\u003e\n\u003cli\u003e2010 Audi S5\u003c\/li\u003e\n\u003cli\u003e2009 Audi A6 Quattro\u003c\/li\u003e\n\u003cli\u003e2009 Audi A8 Quattro\u003c\/li\u003e\n\u003cli\u003e2009 Audi Q7\u003c\/li\u003e\n\u003cli\u003e2009 Audi R8\u003c\/li\u003e\n\u003cli\u003e2009 Audi S5\u003c\/li\u003e\n\u003cli\u003e2009 Volkswagen Touareg\u003c\/li\u003e\n\u003cli\u003e2008 Audi A6 Quattro\u003c\/li\u003e\n\u003cli\u003e2008 Audi A8 Quattro\u003c\/li\u003e\n\u003cli\u003e2008 Audi Q7\u003c\/li\u003e\n\u003cli\u003e2008 Audi R8\u003c\/li\u003e\n\u003cli\u003e2008 Audi RS4\u003c\/li\u003e\n\u003cli\u003e2008 Audi S5\u003c\/li\u003e\n\u003cli\u003e2008 Volkswagen Touareg\u003c\/li\u003e\n\u003cli\u003e2007 Audi A6 Quattro\u003c\/li\u003e\n\u003cli\u003e2007 Audi A8 Quattro\u003c\/li\u003e\n\u003cli\u003e2007 Audi Q7\u003c\/li\u003e\n\u003cli\u003e2007 Audi RS4\u003c\/li\u003e\n\u003cli\u003e2007 Volkswagen Touareg\u003c\/li\u003e\n\u003cli\u003e2006 Audi A8 Quattro\u003c\/li\u003e\n\u003cli\u003e2006 Volkswagen Phaeton\u003c\/li\u003e\n\u003cli\u003e2005 Audi A8 Quattro\u003c\/li\u003e\n\u003cli\u003e2005 Volkswagen Phaeton\u003c\/li\u003e\n\u003cli\u003e2004 Audi A8 Quattro\u003c\/li\u003e\n\u003cli\u003e2004 Volkswagen Phaeton\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Walker Products","offers":[{"title":"Default Title","offer_id":58455125459247,"sku":"WPR-242-1155","price":79.0,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0750\/3521\/4127\/files\/242-1155_1.jpg?v=1789176093","url":"https:\/\/partspioneer.com\/products\/wpr-242-1155","provider":"Parts Pioneer","version":"1.0","type":"link"}