{"product_id":"wpr-242-1021","title":"Walker Products Ignition Knock Detonation Sensor - 242-1021","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 242-1021\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\u003eBuilt for Harsh Environments: Engineered to resist heat, vibration, and oil exposure for long-lasting signal reliability.\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\u003eExact OE Fit: Installs directly into original mounting locations using factory connectors and threads—no modifications required.\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\u003cli\u003eDetects Engine Knock: Monitors vibration frequencies to detect detonation and prevent pre-ignition engine damage.\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\u003eTaiwan\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\u003e2005 Buick Century\u003c\/li\u003e\n\u003cli\u003e2005 Buick Rendezvous\u003c\/li\u003e\n\u003cli\u003e2005 Chevrolet Impala\u003c\/li\u003e\n\u003cli\u003e2005 Chevrolet Monte Carlo\u003c\/li\u003e\n\u003cli\u003e2005 Chevrolet Venture\u003c\/li\u003e\n\u003cli\u003e2005 Pontiac Aztek\u003c\/li\u003e\n\u003cli\u003e2005 Pontiac Grand Am\u003c\/li\u003e\n\u003cli\u003e2005 Pontiac Montana\u003c\/li\u003e\n\u003cli\u003e2004 Buick Century\u003c\/li\u003e\n\u003cli\u003e2004 Buick Rendezvous\u003c\/li\u003e\n\u003cli\u003e2004 Chevrolet Impala\u003c\/li\u003e\n\u003cli\u003e2004 Chevrolet Monte Carlo\u003c\/li\u003e\n\u003cli\u003e2004 Chevrolet Venture\u003c\/li\u003e\n\u003cli\u003e2004 Pontiac Aztek\u003c\/li\u003e\n\u003cli\u003e2004 Pontiac Grand Am\u003c\/li\u003e\n\u003cli\u003e2004 Pontiac Montana\u003c\/li\u003e\n\u003cli\u003e2003 Buick Century\u003c\/li\u003e\n\u003cli\u003e2003 Buick Rendezvous\u003c\/li\u003e\n\u003cli\u003e2003 Chevrolet Impala\u003c\/li\u003e\n\u003cli\u003e2003 Chevrolet Malibu\u003c\/li\u003e\n\u003cli\u003e2003 Chevrolet Monte Carlo\u003c\/li\u003e\n\u003cli\u003e2003 Chevrolet Venture\u003c\/li\u003e\n\u003cli\u003e2003 Pontiac Aztek\u003c\/li\u003e\n\u003cli\u003e2003 Pontiac Grand Am\u003c\/li\u003e\n\u003cli\u003e2003 Pontiac Grand Prix\u003c\/li\u003e\n\u003cli\u003e2003 Pontiac Montana\u003c\/li\u003e\n\u003cli\u003e2002 Buick Century\u003c\/li\u003e\n\u003cli\u003e2002 Buick Rendezvous\u003c\/li\u003e\n\u003cli\u003e2002 Chevrolet Impala\u003c\/li\u003e\n\u003cli\u003e2002 Chevrolet Malibu\u003c\/li\u003e\n\u003cli\u003e2002 Chevrolet Monte Carlo\u003c\/li\u003e\n\u003cli\u003e2002 Chevrolet Venture\u003c\/li\u003e\n\u003cli\u003e2002 Pontiac Aztek\u003c\/li\u003e\n\u003cli\u003e2002 Pontiac Grand Am\u003c\/li\u003e\n\u003cli\u003e2002 Pontiac Grand Prix\u003c\/li\u003e\n\u003cli\u003e2002 Pontiac Montana\u003c\/li\u003e\n\u003cli\u003e2001 Buick Century\u003c\/li\u003e\n\u003cli\u003e2001 Chevrolet Impala\u003c\/li\u003e\n\u003cli\u003e2001 Chevrolet Lumina\u003c\/li\u003e\n\u003cli\u003e2001 Chevrolet Malibu\u003c\/li\u003e\n\u003cli\u003e2001 Chevrolet Monte Carlo\u003c\/li\u003e\n\u003cli\u003e2001 Chevrolet Venture\u003c\/li\u003e\n\u003cli\u003e2001 Pontiac Aztek\u003c\/li\u003e\n\u003cli\u003e2001 Pontiac Grand Am\u003c\/li\u003e\n\u003cli\u003e2001 Pontiac Grand Prix\u003c\/li\u003e\n\u003cli\u003e2001 Pontiac Montana\u003c\/li\u003e\n\u003cli\u003e2000 Buick Century\u003c\/li\u003e\n\u003cli\u003e2000 Chevrolet Impala\u003c\/li\u003e\n\u003cli\u003e2000 Chevrolet Lumina\u003c\/li\u003e\n\u003cli\u003e2000 Chevrolet Malibu\u003c\/li\u003e\n\u003cli\u003e2000 Chevrolet Monte Carlo\u003c\/li\u003e\n\u003cli\u003e2000 Chevrolet Venture\u003c\/li\u003e\n\u003cli\u003e2000 Pontiac Grand Am\u003c\/li\u003e\n\u003cli\u003e2000 Pontiac Grand Prix\u003c\/li\u003e\n\u003cli\u003e2000 Pontiac Montana\u003c\/li\u003e\n\u003cli\u003e1999 Buick Century\u003c\/li\u003e\n\u003cli\u003e1999 Chevrolet Lumina\u003c\/li\u003e\n\u003cli\u003e1999 Chevrolet Malibu\u003c\/li\u003e\n\u003cli\u003e1999 Chevrolet Monte Carlo\u003c\/li\u003e\n\u003cli\u003e1999 Chevrolet Venture\u003c\/li\u003e\n\u003cli\u003e1999 Pontiac Grand Am\u003c\/li\u003e\n\u003cli\u003e1999 Pontiac Grand Prix\u003c\/li\u003e\n\u003cli\u003e1999 Pontiac Montana\u003c\/li\u003e\n\u003cli\u003e1998 Buick Century\u003c\/li\u003e\n\u003cli\u003e1998 Buick Skylark\u003c\/li\u003e\n\u003cli\u003e1998 Chevrolet Lumina\u003c\/li\u003e\n\u003cli\u003e1998 Chevrolet Malibu\u003c\/li\u003e\n\u003cli\u003e1998 Chevrolet Monte Carlo\u003c\/li\u003e\n\u003cli\u003e1998 Chevrolet Venture\u003c\/li\u003e\n\u003cli\u003e1998 Pontiac Grand Am\u003c\/li\u003e\n\u003cli\u003e1998 Pontiac Grand Prix\u003c\/li\u003e\n\u003cli\u003e1998 Pontiac Trans Sport\u003c\/li\u003e\n\u003cli\u003e1997 Buick Century\u003c\/li\u003e\n\u003cli\u003e1997 Buick Skylark\u003c\/li\u003e\n\u003cli\u003e1997 Chevrolet Lumina\u003c\/li\u003e\n\u003cli\u003e1997 Chevrolet Malibu\u003c\/li\u003e\n\u003cli\u003e1997 Chevrolet Monte Carlo\u003c\/li\u003e\n\u003cli\u003e1997 Chevrolet Venture\u003c\/li\u003e\n\u003cli\u003e1997 Pontiac Grand Am\u003c\/li\u003e\n\u003cli\u003e1997 Pontiac Grand Prix\u003c\/li\u003e\n\u003cli\u003e1997 Pontiac Trans Sport\u003c\/li\u003e\n\u003cli\u003e1996 Buick Century\u003c\/li\u003e\n\u003cli\u003e1996 Buick Regal\u003c\/li\u003e\n\u003cli\u003e1996 Buick Skylark\u003c\/li\u003e\n\u003cli\u003e1996 Chevrolet Beretta\u003c\/li\u003e\n\u003cli\u003e1996 Chevrolet Corsica\u003c\/li\u003e\n\u003cli\u003e1996 Chevrolet Lumina\u003c\/li\u003e\n\u003cli\u003e1996 Chevrolet Lumina APV\u003c\/li\u003e\n\u003cli\u003e1996 Chevrolet Monte Carlo\u003c\/li\u003e\n\u003cli\u003e1996 Pontiac Grand Am\u003c\/li\u003e\n\u003cli\u003e1996 Pontiac Grand Prix\u003c\/li\u003e\n\u003cli\u003e1996 Pontiac Trans Sport\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Walker Products","offers":[{"title":"Default Title","offer_id":58455115104559,"sku":"WPR-242-1021","price":44.0,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0750\/3521\/4127\/files\/242-1021_1.jpg?v=1789175701","url":"https:\/\/partspioneer.com\/products\/wpr-242-1021","provider":"Parts Pioneer","version":"1.0","type":"link"}