{"product_id":"denso-234-5164-air-fuel-ratio-sensor","title":"Denso 234-5164 Air \/ Fuel Ratio Sensor - Upstream or Upstream Right","description":"\u003ch2\u003eOverview of the Denso OE Style Air\/Fuel Ratio Sensor\u003c\/h2\u003e\u003cp\u003eThe Denso OE Style Air\/Fuel Ratio Sensor 234-5164 is designed specifically for select Audi models, including the A4 Quattro, A5 Quattro, A6, A6 Quattro, A7 Quattro, Q5, Q7, S4, S5, and SQ5. This heated sensor plays a critical role in maintaining optimal engine performance and emissions control.\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003eHeated sensor type for faster warm-up and accurate readings\u003c\/li\u003e\n\u003cli\u003eSpecific fit for multiple Audi models ensuring precise compatibility\u003c\/li\u003e\n\u003cli\u003e22.52-inch wiring harness length for proper installation routing\u003c\/li\u003e\n\u003cli\u003eFive-wire configuration with a male connector for secure electrical connection\u003c\/li\u003e\n\u003cli\u003eThread diameter of 0.711 inches for correct mounting\u003c\/li\u003e\n\u003cli\u003eRegular grade type suitable for standard operating conditions\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eDetailed Product Description\u003c\/h2\u003e\u003cp\u003eThe Denso 234-5164 air\/fuel ratio sensor is engineered to provide accurate measurement of oxygen levels in the exhaust gases, enabling the engine control unit to adjust fuel delivery for efficient combustion. Featuring a heated sensor element, it reaches operating temperature quickly, improving sensor response time and reducing emissions during cold starts. The 22.52-inch wiring harness length allows for proper routing within the engine bay, while the five-wire design and male connector ensure reliable electrical connectivity. This sensor is designed with a 0.711-inch thread diameter, matching OEM specifications for secure installation in compatible Audi vehicles.\u003c\/p\u003e\u003cp\u003eThis sensor is part of Denso's OE Style product line, which focuses on delivering parts that meet original equipment specifications for fit, form, and function. The OE Style line is intended to provide a direct replacement solution for emission control sensors, maintaining the performance and reliability expected from factory-installed components.\u003c\/p\u003e\u003ch2\u003eApplications and Common Issues Addressed\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003eHelps resolve poor fuel economy caused by incorrect air\/fuel mixture readings\u003c\/li\u003e\n\u003cli\u003eAddresses rough idling or engine hesitation due to faulty sensor signals\u003c\/li\u003e\n\u003cli\u003eReduces increased emissions and failed emissions tests linked to sensor malfunction\u003c\/li\u003e\n\u003cli\u003ePrevents check engine light triggers related to oxygen sensor faults\u003c\/li\u003e\n\u003cli\u003eSupports stable engine performance in Audi A4 Quattro, A5 Quattro, A6, and other compatible models\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eInstallation Notes and Tips\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003eEnsure the vehicle is compatible with part number 234-5164 before installation\u003c\/li\u003e\n\u003cli\u003eDisconnect the battery prior to sensor replacement to avoid electrical issues\u003c\/li\u003e\n\u003cli\u003eUse appropriate tools to avoid damaging the 0.711-inch threaded sensor housing\u003c\/li\u003e\n\u003cli\u003eVerify the wiring harness length and connector type match the vehicle’s existing setup\u003c\/li\u003e\n\u003cli\u003eFollow manufacturer torque specifications when tightening the sensor\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eQuality Assurance and Warranty\u003c\/h2\u003e\u003cp\u003eDenso OE Style sensors are manufactured to meet strict quality standards, ensuring reliable performance and durability. This air\/fuel ratio sensor undergoes rigorous testing to comply with OEM specifications. While specific warranty details may vary, Denso typically offers coverage against defects in materials and workmanship to support long-term use in compatible Audi vehicles.\u003c\/p\u003e","brand":"Denso","offers":[{"title":"Default Title","offer_id":43978982031541,"sku":"BBNF-234-5164","price":156.15,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0628\/1442\/1173\/files\/NP_2345164_Fro.jpg?v=1775007466","url":"https:\/\/www.partcatalog.com\/products\/denso-234-5164-air-fuel-ratio-sensor","provider":"PartCatalog","version":"1.0","type":"link"}