{"product_id":"22854-denso-lambda-sensor-air-fuel-ratio-sensor-234-5724","title":"22854 Denso Lambda sensor\/Air Fuel Ratio Sensor 234-5724","description":"\u003ch2\u003eGenuine Denso Air Fuel Ratio Sensor 234-5724\u003c\/h2\u003e\n\u003cp\u003eEnsure optimal fuel efficiency and emissions compliance with the \u003cstrong\u003eDenso Air Fuel Ratio Sensor 234-5724\u003c\/strong\u003e (SKU 22-854). This premium OEM-quality wideband pre-cat lambda sensor is engineered by Denso to accurately measure exhaust oxygen content across a wide air-fuel ratio range, providing critical real-time feedback to the engine control unit for precise fuel delivery, optimal combustion efficiency, and emissions control. Designed specifically for Honda FC\/FK Civic with L15B7 engine and Honda RW CR-V with L15BG engine, this sensor ensures dependable engine management system performance and long service life for your Honda.\u003c\/p\u003e\n\u003ch3\u003e\u003cspan\u003e\u003cstrong\u003e\u003cspan style=\"color: rgb(255, 42, 0);\"\u003e\u003ca style=\"color: rgb(255, 42, 0);\" title=\"PARTS FINDER\" href=\"https:\/\/lm15motorsport.com.au\/pages\/vehicle-catalogue\" rel=\"null noopener\" aria-describedby=\"a11y-new-window-message\" target=\"_blank\"\u003eCLICK HERE\u003c\/a\u003e \u003c\/span\u003eTO CHECK IF THIS FITS YOUR VEHICLE.\u003c\/strong\u003e\u003c\/span\u003e\u003c\/h3\u003e\n\u003ch3\u003eKey Features \u0026amp; Benefits\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eGenuine Denso Quality\u003c\/strong\u003e - OEM-grade component built to exacting standards\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eHonda Civic \u0026amp; CR-V Application\u003c\/strong\u003e - Fits FC\/FK Civic L15B7 and RW CR-V L15BG\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWideband Pre-Cat Sensor\u003c\/strong\u003e - Upstream lambda sensor for primary fuel control\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePrecise AFR Measurement\u003c\/strong\u003e - Accurately measures air-fuel ratio across wide range\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOptimal Fuel Delivery\u003c\/strong\u003e - Ensures correct fuel mixture under all conditions\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMaximum Fuel Economy\u003c\/strong\u003e - Precise feedback maximizes fuel efficiency\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eEmissions Compliance\u003c\/strong\u003e - Maintains proper emissions control system operation\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCatalytic Converter Protection\u003c\/strong\u003e - Prevents rich running that damages catalysts\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eReliable Operation\u003c\/strong\u003e - Consistent performance in all conditions\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eLong Service Life\u003c\/strong\u003e - Durable construction for extended reliability\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eTechnical Specifications\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eDenso Part Number:\u003c\/strong\u003e 234-5724\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSKU:\u003c\/strong\u003e 22-854\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eComponent Type:\u003c\/strong\u003e Air Fuel Ratio Sensor \/ Wideband Lambda Sensor (Pre-Cat \/ Upstream)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePrimary Application:\u003c\/strong\u003e Honda FC\/FK Civic L15B7, Honda RW CR-V L15BG\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWeight:\u003c\/strong\u003e 0.2 kg (approximate)\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eVehicle Compatibility\u003c\/h3\u003e\n\u003cp\u003eThis Denso air fuel ratio sensor is compatible with the following Honda models and engines:\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eHonda Civic:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eHonda Civic FC (L15B7 1.5L VTEC Turbo engine)\u003c\/li\u003e\n\u003cli\u003eHonda Civic FK (L15B7 1.5L VTEC Turbo engine)\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong\u003eHonda CR-V:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eHonda CR-V RW (L15BG 1.5L VTEC Turbo engine)\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eAlways verify fitment for your specific vehicle, model year, and engine configuration.\u003c\/p\u003e\n\u003ch3\u003e\u003cspan\u003e\u003cstrong\u003e\u003cspan style=\"color: rgb(255, 42, 0);\"\u003e\u003ca style=\"color: rgb(255, 42, 0);\" title=\"PARTS FINDER\" href=\"https:\/\/lm15motorsport.com.au\/pages\/vehicle-catalogue\" rel=\"null noopener\" aria-describedby=\"a11y-new-window-message\" target=\"_blank\"\u003eCLICK HERE\u003c\/a\u003e \u003c\/span\u003eTO CHECK IF THIS FITS YOUR VEHICLE.\u003c\/strong\u003e\u003c\/span\u003e\u003c\/h3\u003e\n\u003ch3\u003eOEM Part Number Cross-Reference\u003c\/h3\u003e\n\u003cp\u003eThis Denso air fuel ratio sensor replaces the following OEM part numbers:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e234-5724 (Denso)\u003c\/li\u003e\n\u003cli\u003e365315K8004 (Honda)\u003c\/li\u003e\n\u003cli\u003eEGO-854 \/ EGO854\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eCommon Symptoms of Faulty Air Fuel Ratio Sensors\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eCheck engine light with O2\/AFR sensor codes (P0130, P0131, P0132, P0133, P0134, P0135, P2A00, P2A03)\u003c\/li\u003e\n\u003cli\u003ePoor fuel economy\u003c\/li\u003e\n\u003cli\u003eRich or lean running condition\u003c\/li\u003e\n\u003cli\u003eRough idle or engine hesitation\u003c\/li\u003e\n\u003cli\u003eFailed emissions test\u003c\/li\u003e\n\u003cli\u003eBlack smoke from exhaust (rich condition)\u003c\/li\u003e\n\u003cli\u003eCatalytic converter damage from prolonged rich running\u003c\/li\u003e\n\u003cli\u003eLoss of power during acceleration\u003c\/li\u003e\n\u003cli\u003eEngine stumbling or misfiring\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eWhat Does an Air Fuel Ratio Sensor Do?\u003c\/h3\u003e\n\u003cp\u003eThe air fuel ratio (AFR) sensor, also known as a wideband lambda sensor or wideband O2 sensor, is a critical component of your vehicle's engine management and emissions control system. Unlike a conventional narrowband oxygen sensor that simply detects rich or lean conditions, the wideband AFR sensor accurately measures the precise air-fuel ratio across a wide range — from very rich to very lean. Mounted upstream of the catalytic converter (pre-cat), the sensor provides continuous real-time feedback to the engine control unit (ECU), which uses this data to precisely adjust fuel injection quantity to maintain the ideal stoichiometric air-fuel ratio (14.7:1 for petrol engines). In turbocharged engines like the Honda L15B7 and L15BG, accurate AFR measurement is especially critical for maintaining safe combustion under boost conditions. A properly functioning AFR sensor is essential for optimal fuel economy, maximum performance, emissions compliance, and catalytic converter longevity.\u003c\/p\u003e\n\u003ch3\u003eWhy Choose Genuine Denso Air Fuel Ratio Sensors?\u003c\/h3\u003e\n\u003cp\u003eGenuine Denso air fuel ratio sensors are designed to meet or exceed original equipment specifications, ensuring accurate wideband measurement, reliable operation, and long service life. As a world-leading automotive supplier and original equipment manufacturer for Honda and other major automakers, Denso engine management components are built to exacting standards with precision engineering and quality materials. Using genuine Denso AFR sensors ensures proper fitment, maintains your vehicle's engine management system integrity, and provides the reliability you need for worry-free driving.\u003c\/p\u003e\n\u003ch3\u003eInstallation Notes\u003c\/h3\u003e\n\u003cp\u003eProfessional installation is recommended for best results. AFR sensor replacement requires disconnecting the battery, locating the upstream sensor in the exhaust system (before the catalytic converter), disconnecting the electrical connector, and carefully removing the old sensor using an oxygen sensor socket. Apply anti-seize compound to the threads of the new sensor (if not pre-applied). Install the new sensor and torque to manufacturer specifications (typically 40-55 Nm). Reconnect the electrical connector. Clear any diagnostic trouble codes and allow the engine to reach operating temperature to complete the sensor's closed-loop learning cycle. Test drive to verify proper operation and fuel economy improvement.\u003c\/p\u003e\n\u003ch3\u003eWhy Choose LM15 Motorsport?\u003c\/h3\u003e\n\u003cp\u003eWe supply genuine Denso engine management components with fast shipping across Australia. Every air fuel ratio sensor is carefully inspected to ensure you receive an authentic Denso component for reliable engine management system performance. Our team has extensive experience with Honda Civic and CR-V vehicles and can provide expert advice on engine management system maintenance and troubleshooting.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eNeed help with fitment or installation?\u003c\/strong\u003e Contact our expert team for advice specific to your Honda FC\/FK Civic L15B7 or RW CR-V L15BG air fuel ratio sensor requirements.\u003c\/p\u003e","brand":"DENSO","offers":[{"title":"Default Title","offer_id":47817853108375,"sku":"22-854","price":325.38,"currency_code":"AUD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0564\/8672\/3735\/files\/228544WITHDENSOLOGO.jpg?v=1778563330","url":"https:\/\/lm15motorsport.com.au\/products\/22854-denso-lambda-sensor-air-fuel-ratio-sensor-234-5724","provider":"LM15 Motorsport","version":"1.0","type":"link"}