{"product_id":"denso-234-9158-air-fuel-ratio-sensor","title":"Denso 234-9158 Air \/ Fuel Ratio Sensor - Upstream Left or Upstream Right","description":"\u003ch2\u003eReliable Air\/Fuel Ratio Sensor for Lexus and Toyota Vehicles\u003c\/h2\u003e\u003cp\u003eThe Denso OE Style 234-9158 Air\/Fuel Ratio Sensor is engineered to provide precise emissions control for select Lexus and Toyota models. Designed as a specific fit part, it ensures accurate sensor readings and optimal engine performance.\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003eHeated sensor type for faster response times\u003c\/li\u003e\n\u003cli\u003eSpecific fitment for Lexus Highlander, RX350, RX350L, RX450h, RX450hL, and Toyota Sienna\u003c\/li\u003e\n\u003cli\u003e17.32-inch wiring harness length for proper installation\u003c\/li\u003e\n\u003cli\u003eFour-wire configuration with male connector\u003c\/li\u003e\n\u003cli\u003eThread diameter of 0.709 inches for secure mounting\u003c\/li\u003e\n\u003cli\u003eRegular grade type for standard durability and performance\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eAbout the Denso OE Style Product Line\u003c\/h2\u003e\u003cp\u003eThe OE Style line from Denso focuses on delivering parts that meet original equipment specifications. This Air\/Fuel Ratio Sensor 234-9158 is manufactured to match the fit, form, and function of the factory-installed sensor, ensuring compatibility and reliable operation within the vehicle’s emission control system.\u003c\/p\u003e\u003ch2\u003eDetailed Product Description\u003c\/h2\u003e\u003cp\u003eThis Denso Air\/Fuel Ratio Sensor 234-9158 is a heated sensor designed to provide accurate air-to-fuel mixture readings critical for emission control and engine efficiency. The sensor’s 17.32-inch wiring harness length and four-wire design with a male connector allow for a direct replacement without modification. Its specific fitment ensures compatibility with Lexus Highlander, RX350, RX350L, RX450h, RX450hL, and Toyota Sienna models, maintaining proper engine management and emission standards.\u003c\/p\u003e\u003ch2\u003eCommon Issues Addressed by This Sensor\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003eIncorrect air\/fuel mixture readings causing poor fuel economy\u003c\/li\u003e\n\u003cli\u003eCheck engine light triggered by faulty sensor signals\u003c\/li\u003e\n\u003cli\u003eIncreased emissions due to sensor malfunction\u003c\/li\u003e\n\u003cli\u003eEngine performance issues such as rough idling or hesitation\u003c\/li\u003e\n\u003cli\u003eFailed emissions tests related to sensor failure\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eInstallation Notes and Tips\u003c\/h2\u003e\u003cp\u003eEnsure the vehicle is cool before installation to avoid injury. Disconnect the battery to prevent electrical shorts. The 17.32-inch wiring harness length provides flexibility during installation, but verify connector compatibility with the vehicle’s harness. Use proper tools to avoid damaging the 0.709-inch thread diameter sensor during mounting. Follow manufacturer torque specifications for secure installation.\u003c\/p\u003e\u003ch2\u003eQuality Assurance and Warranty\u003c\/h2\u003e\u003cp\u003eDenso OE Style sensors are manufactured to meet original equipment standards, ensuring reliable performance and durability. This part undergoes rigorous quality control to comply with emission regulations. Warranty coverage details should be confirmed with the point of purchase or manufacturer documentation.\u003c\/p\u003e","brand":"Denso","offers":[{"title":"Default Title","offer_id":43979148198069,"sku":"BBNF-234-9158","price":122.09,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0628\/1442\/1173\/files\/NP_2349158_Fro.jpg?v=1775007516","url":"https:\/\/www.partcatalog.com\/products\/denso-234-9158-air-fuel-ratio-sensor","provider":"PartCatalog","version":"1.0","type":"link"}