{"product_id":"denso-234-9034-air-fuel-ratio-sensor","title":"Denso 234-9034 Air \/ Fuel Ratio Sensor - Upstream","description":"\u003ch2\u003eOverview of the Denso OE Style Air\/Fuel Ratio Sensor 234-9034\u003c\/h2\u003e\u003cp\u003eThe Denso OE Style Air\/Fuel Ratio Sensor 234-9034 is designed specifically for Subaru Impreza and WRX STI models. This heated sensor ensures accurate air and fuel mixture readings to maintain optimal engine performance and emissions control.\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003eHeated sensor type for faster response times\u003c\/li\u003e\n\u003cli\u003eSpecific fit for Subaru Impreza and WRX STI\u003c\/li\u003e\n\u003cli\u003e31.06-inch wiring harness length for precise installation\u003c\/li\u003e\n\u003cli\u003eFour-wire configuration with female connector\u003c\/li\u003e\n\u003cli\u003e0.711-inch thread diameter for secure mounting\u003c\/li\u003e\n\u003cli\u003eRegular grade type for reliable operation\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eDetailed Product Description\u003c\/h2\u003e\u003cp\u003eThe Denso 234-9034 air\/fuel ratio sensor is engineered to provide precise feedback to the engine control unit (ECU) by measuring the oxygen content in the exhaust gases. This heated sensor type accelerates the sensor’s warm-up time, improving fuel efficiency and reducing emissions sooner after engine start. With a wiring harness length of 31.06 inches and a four-wire setup, it offers compatibility with the specific electrical systems of Subaru Impreza and WRX STI vehicles. The female connector and 0.711-inch thread diameter ensure a secure and proper fit during installation.\u003c\/p\u003e\u003cp\u003eThis sensor is part of Denso's OE Style product line, which focuses on delivering original equipment quality and fitment. The OE Style line is designed to match the specifications and performance of factory-installed parts, making it a suitable replacement for maintaining vehicle integrity and emission standards.\u003c\/p\u003e\u003ch2\u003eCommon Applications and Issues Addressed\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003eHelps correct inaccurate air\/fuel mixture readings\u003c\/li\u003e\n\u003cli\u003eResolves engine performance issues related to faulty oxygen sensors\u003c\/li\u003e\n\u003cli\u003eReduces rough idling and poor fuel economy\u003c\/li\u003e\n\u003cli\u003eAssists in passing emissions tests by maintaining proper exhaust gas readings\u003c\/li\u003e\n\u003cli\u003ePrevents check engine light triggers related to sensor faults\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eInstallation Notes and Tips\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003eEnsure compatibility with Subaru Impreza and WRX STI models before installation\u003c\/li\u003e\n\u003cli\u003eHandle the sensor carefully to avoid damage to the heated element and wiring\u003c\/li\u003e\n\u003cli\u003eUse proper tools to avoid damaging the 0.711-inch thread during mounting\u003c\/li\u003e\n\u003cli\u003eVerify connector polarity and secure the female connector firmly\u003c\/li\u003e\n\u003cli\u003eFollow vehicle manufacturer torque specifications for sensor installation\u003c\/li\u003e\n\u003c\/ul\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. While specific warranty details may vary, Denso products typically come with a limited warranty covering defects in materials and workmanship. This ensures confidence in the 234-9034 air\/fuel ratio sensor’s quality and longevity when installed in compatible Subaru Impreza and WRX STI vehicles.\u003c\/p\u003e","brand":"Denso","offers":[{"title":"Default Title","offer_id":43979050680501,"sku":"BBNF-234-9034","price":161.01,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0628\/1442\/1173\/files\/NP_2349034_Fro.jpg?v=1775007484","url":"https:\/\/www.partcatalog.com\/products\/denso-234-9034-air-fuel-ratio-sensor","provider":"PartCatalog","version":"1.0","type":"link"}