{"product_id":"wpr-242-91022","title":"Walker Products Ignition Knock Detonation Sensor - 242-91022","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 - Full Service Kit\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePart Number:\u003c\/strong\u003e 242-91022\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\u003eDetects Engine Knock: Monitors vibration frequencies to detect detonation and prevent pre-ignition engine damage.\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\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\u003eOE Replacement Sensitivity: Calibrated to match factory frequency response and output for seamless ECU integration and spark control.\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\u003e2001 Chevrolet Blazer\u003c\/li\u003e\n\u003cli\u003e2001 Chevrolet S10\u003c\/li\u003e\n\u003cli\u003e2001 GMC Jimmy\u003c\/li\u003e\n\u003cli\u003e2001 GMC Sonoma\u003c\/li\u003e\n\u003cli\u003e2000 Chevrolet Astro\u003c\/li\u003e\n\u003cli\u003e2000 Chevrolet Blazer\u003c\/li\u003e\n\u003cli\u003e2000 Chevrolet Express 1500\u003c\/li\u003e\n\u003cli\u003e2000 Chevrolet Express 2500\u003c\/li\u003e\n\u003cli\u003e2000 Chevrolet S10\u003c\/li\u003e\n\u003cli\u003e2000 Chevrolet Silverado 1500\u003c\/li\u003e\n\u003cli\u003e2000 GMC Jimmy\u003c\/li\u003e\n\u003cli\u003e2000 GMC Safari\u003c\/li\u003e\n\u003cli\u003e2000 GMC Savana 1500\u003c\/li\u003e\n\u003cli\u003e2000 GMC Savana 2500\u003c\/li\u003e\n\u003cli\u003e2000 GMC Savana 3500\u003c\/li\u003e\n\u003cli\u003e2000 GMC Sierra 1500\u003c\/li\u003e\n\u003cli\u003e2000 GMC Sonoma\u003c\/li\u003e\n\u003cli\u003e2000 Isuzu Hombre\u003c\/li\u003e\n\u003cli\u003e1999 Chevrolet Astro\u003c\/li\u003e\n\u003cli\u003e1999 Chevrolet Blazer\u003c\/li\u003e\n\u003cli\u003e1999 Chevrolet Express 1500\u003c\/li\u003e\n\u003cli\u003e1999 Chevrolet Express 2500\u003c\/li\u003e\n\u003cli\u003e1999 Chevrolet P30\u003c\/li\u003e\n\u003cli\u003e1999 Chevrolet S10\u003c\/li\u003e\n\u003cli\u003e1999 Chevrolet Silverado 1500\u003c\/li\u003e\n\u003cli\u003e1999 GMC Jimmy\u003c\/li\u003e\n\u003cli\u003e1999 GMC P3500\u003c\/li\u003e\n\u003cli\u003e1999 GMC Safari\u003c\/li\u003e\n\u003cli\u003e1999 GMC Savana 1500\u003c\/li\u003e\n\u003cli\u003e1999 GMC Savana 2500\u003c\/li\u003e\n\u003cli\u003e1999 GMC Sierra 1500\u003c\/li\u003e\n\u003cli\u003e1999 GMC Sonoma\u003c\/li\u003e\n\u003cli\u003e1999 Isuzu Hombre\u003c\/li\u003e\n\u003cli\u003e1998 Chevrolet Astro\u003c\/li\u003e\n\u003cli\u003e1998 Chevrolet Blazer\u003c\/li\u003e\n\u003cli\u003e1998 Chevrolet C1500\u003c\/li\u003e\n\u003cli\u003e1998 Chevrolet Express 1500\u003c\/li\u003e\n\u003cli\u003e1998 Chevrolet Express 2500\u003c\/li\u003e\n\u003cli\u003e1998 Chevrolet K1500\u003c\/li\u003e\n\u003cli\u003e1998 Chevrolet P30\u003c\/li\u003e\n\u003cli\u003e1998 Chevrolet S10\u003c\/li\u003e\n\u003cli\u003e1998 GMC C1500\u003c\/li\u003e\n\u003cli\u003e1998 GMC Jimmy\u003c\/li\u003e\n\u003cli\u003e1998 GMC K1500\u003c\/li\u003e\n\u003cli\u003e1998 GMC P3500\u003c\/li\u003e\n\u003cli\u003e1998 GMC Safari\u003c\/li\u003e\n\u003cli\u003e1998 GMC Savana 1500\u003c\/li\u003e\n\u003cli\u003e1998 GMC Savana 2500\u003c\/li\u003e\n\u003cli\u003e1998 GMC Sonoma\u003c\/li\u003e\n\u003cli\u003e1998 Isuzu Hombre\u003c\/li\u003e\n\u003cli\u003e1997 Chevrolet Astro\u003c\/li\u003e\n\u003cli\u003e1997 Chevrolet Blazer\u003c\/li\u003e\n\u003cli\u003e1997 Chevrolet C1500\u003c\/li\u003e\n\u003cli\u003e1997 Chevrolet Express 1500\u003c\/li\u003e\n\u003cli\u003e1997 Chevrolet Express 2500\u003c\/li\u003e\n\u003cli\u003e1997 Chevrolet K1500\u003c\/li\u003e\n\u003cli\u003e1997 Chevrolet P30\u003c\/li\u003e\n\u003cli\u003e1997 Chevrolet S10\u003c\/li\u003e\n\u003cli\u003e1997 GMC C1500\u003c\/li\u003e\n\u003cli\u003e1997 GMC Jimmy\u003c\/li\u003e\n\u003cli\u003e1997 GMC K1500\u003c\/li\u003e\n\u003cli\u003e1997 GMC P3500\u003c\/li\u003e\n\u003cli\u003e1997 GMC Safari\u003c\/li\u003e\n\u003cli\u003e1997 GMC Savana 1500\u003c\/li\u003e\n\u003cli\u003e1997 GMC Savana 2500\u003c\/li\u003e\n\u003cli\u003e1997 GMC Sonoma\u003c\/li\u003e\n\u003cli\u003e1997 Isuzu Hombre\u003c\/li\u003e\n\u003cli\u003e1996 Chevrolet Astro\u003c\/li\u003e\n\u003cli\u003e1996 Chevrolet Blazer\u003c\/li\u003e\n\u003cli\u003e1996 Chevrolet C1500\u003c\/li\u003e\n\u003cli\u003e1996 Chevrolet Express 1500\u003c\/li\u003e\n\u003cli\u003e1996 Chevrolet Express 2500\u003c\/li\u003e\n\u003cli\u003e1996 Chevrolet K1500\u003c\/li\u003e\n\u003cli\u003e1996 Chevrolet P30\u003c\/li\u003e\n\u003cli\u003e1996 Chevrolet S10\u003c\/li\u003e\n\u003cli\u003e1996 GMC C1500\u003c\/li\u003e\n\u003cli\u003e1996 GMC Jimmy\u003c\/li\u003e\n\u003cli\u003e1996 GMC K1500\u003c\/li\u003e\n\u003cli\u003e1996 GMC P3500\u003c\/li\u003e\n\u003cli\u003e1996 GMC Safari\u003c\/li\u003e\n\u003cli\u003e1996 GMC Savana 1500\u003c\/li\u003e\n\u003cli\u003e1996 GMC Savana 2500\u003c\/li\u003e\n\u003cli\u003e1996 GMC Sonoma\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Walker Products","offers":[{"title":"Default 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