{"product_id":"walker-242-1139-ignition-knock-detonation-sensor","title":"Walker 242-1139 Ignition Knock (Detonation) Sensor","description":"\u003ch2\u003eOverview of Walker Ignition Knock Sensor 242-1139\u003c\/h2\u003e\u003cp\u003eThe Walker Products Ignition Knock (Detonation) Sensor 242-1139 is designed for precise detection of engine knock in select Audi and Volkswagen models. This sensor helps maintain optimal engine performance by monitoring detonation and sending accurate signals to the engine control unit.\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003eCompatible with Audi A4, A4 Quattro, A6, A6 Quattro, Allroad Quattro, S4, and Volkswagen Passat\u003c\/li\u003e\n\u003cli\u003ePart number 242-1139 ensures exact fit and function\u003c\/li\u003e\n\u003cli\u003eMonitors engine knock to prevent damage and improve efficiency\u003c\/li\u003e\n\u003cli\u003eEngineered for reliable signal transmission to the ECU\u003c\/li\u003e\n\u003cli\u003eWalker Products brand line known for emission control sensor quality\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eDetailed Product Description\u003c\/h2\u003e\u003cp\u003eThis ignition knock sensor from Walker Products is specifically engineered to detect detonation or knocking in the engine combustion chamber. By accurately sensing vibrations caused by knock, the sensor sends real-time data to the vehicle’s engine control unit (ECU), allowing it to adjust ignition timing and fuel delivery. The 242-1139 sensor is compatible with a range of Audi models including the A4, A4 Quattro, A6, A6 Quattro, Allroad Quattro, and S4, as well as the Volkswagen Passat. This ensures proper fitment and reliable operation within these vehicles’ emission control systems.\u003c\/p\u003e\u003cp\u003eWalker Products is a recognized brand line specializing in emission control components, including sensors that meet OEM specifications. Their focus on precision and durability supports the performance and longevity of emission-related parts like the ignition knock sensor.\u003c\/p\u003e\u003ch2\u003eCommon Applications and Issues Addressed\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003eDetects engine knocking or detonation to prevent potential engine damage\u003c\/li\u003e\n\u003cli\u003eHelps maintain optimal ignition timing for improved fuel efficiency\u003c\/li\u003e\n\u003cli\u003eSupports emission control by ensuring proper combustion monitoring\u003c\/li\u003e\n\u003cli\u003eReduces risk of engine misfire and rough idling\u003c\/li\u003e\n\u003cli\u003ePrevents check engine light triggers related to knock sensor faults\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eInstallation Notes and Tips\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003eEnsure compatibility with your specific Audi or Volkswagen model before installation\u003c\/li\u003e\n\u003cli\u003eDisconnect the battery prior to sensor replacement to avoid electrical issues\u003c\/li\u003e\n\u003cli\u003eUse proper torque specifications when securing the sensor to avoid damage\u003c\/li\u003e\n\u003cli\u003eInspect wiring and connectors for corrosion or damage during installation\u003c\/li\u003e\n\u003cli\u003eClear any diagnostic trouble codes after installation to reset the ECU\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eQuality Assurance and Warranty\u003c\/h2\u003e\u003cp\u003eThe Walker Products ignition knock sensor 242-1139 is manufactured to meet or exceed OEM standards for emission control sensors. While specific warranty details may vary, Walker Products typically offers coverage against defects in materials and workmanship to ensure reliability and customer confidence.\u003c\/p\u003e","brand":"Walker","offers":[{"title":"Default Title","offer_id":43527852753077,"sku":"DKHD-242-1139","price":65.83,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0628\/1442\/1173\/files\/O2_2421139_Fro_3db860a4-392c-42fc-ad25-f3ed090404ef.jpg?v=1774891356","url":"https:\/\/www.partcatalog.com\/products\/walker-242-1139-ignition-knock-detonation-sensor","provider":"PartCatalog","version":"1.0","type":"link"}