{"product_id":"o2-oxygen-sensor-upstream-downstream-for-honda-accord-2003-2007-2-4l","title":"O2 Oxygen Sensor Upstream Downstream for Honda Accord (2003-2007) 2.4L","description":"\u003ch2 style=\"font-size: clamp(18px, 3vw, 21px); margin-bottom: 15px; line-height: 1.3;\"\u003eDirect-Fit Replacement Oxygen Sensor Kit for 2003-2007 Honda Accord (CM5\/CM7)\u003c\/h2\u003e\n\u003cp\u003e\u003cstrong\u003eWhat it Does:\u003c\/strong\u003e The Upstream and Downstream Oxygen Sensor Kit replaces degraded factory exhaust gas sensors on the 2003-2007 Accord 2.4L to restore closed-loop air-fuel metering, eliminate diagnostic trouble codes, and recover lost fuel economy.\u003c\/p\u003e\n\u003ch3\u003eThe Stock Honda Accord Sensor Degradation\u003c\/h3\u003e\n\u003cp\u003eOver extended operating cycles, factory zirconia sensors on the \u003cstrong\u003eHonda Accord CM5\/CM7\u003c\/strong\u003e succumb to thermal fatigue, exhaust soot contamination, and heater circuit burnout. High exhaust gas temperatures (EGT) and blow-by oil vapors coat the porous ceramic sensing element, creating sluggish switching response times. This latency degrades the engine control module's (ECM) ability to calculate precise short-term fuel trim (STFT), resulting in rich-running conditions, unburned hydrocarbon emissions, catalytic converter degradation, and recurring fault codes such as P0134, P0135, or catalyst efficiency codes like P0420.\u003c\/p\u003e\n\u003ch3\u003eThe Engineering Solution\u003c\/h3\u003e\n\u003cp\u003eEngineered to match OEM switching rates, this dual-sensor set restores factory stoichiometric calculation precision (14.7:1 AFR). Each sensor features a fast-acting integrated planar ceramic heating element that accelerates closed-loop readiness during cold starts, dramatically reducing cold-cycle emissions. Designed as direct drop-in replacements for \u003cstrong\u003e36531-RAA-A01\u003c\/strong\u003e (upstream air\/fuel ratio) and \u003cstrong\u003e36532-RAA-A01\u003c\/strong\u003e (downstream monitoring), these sensors incorporate OE-grade weather-pack terminal connectors, high-temperature silicone-jacketed lead wires, and laser-welded stainless steel bodies to prevent moisture ingress and signal degradation on your \u003cstrong\u003eK24A\u003c\/strong\u003e powertrain.\u003c\/p\u003e\n\u003ch3\u003eWhat's Included\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e1x Upstream Oxygen (Air\/Fuel Ratio) Sensor\u003c\/li\u003e\n\u003cli\u003e1x Downstream Oxygen Sensor\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eTechnical Specifications\u003c\/h3\u003e\n\u003cdiv style=\"overflow-x: auto; margin-bottom: 20px;\"\u003e\n\u003ctable width=\"100% style=\"\u003e\n\u003ctbody\u003e\n\u003ctr style=\"background-color: #f9f9f9;\"\u003e\n\u003cth style=\"padding: 10px; text-align: left; border: 1px solid #e0e0e0;\"\u003eFitment\u003c\/th\u003e\n\u003ctd style=\"padding: 10px; border: 1px solid #e0e0e0;\"\u003e2003-2007 Honda Accord\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth style=\"padding: 10px; text-align: left; border: 1px solid #e0e0e0;\"\u003eEngine \/ Chassis\u003c\/th\u003e\n\u003ctd style=\"padding: 10px; border: 1px solid #e0e0e0;\"\u003eK24A4 \/ K24A8 (2.4L DOHC i-VTEC) \/ CM5 (Sedan), CM7 (Coupe)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"background-color: #f9f9f9;\"\u003e\n\u003cth style=\"padding: 10px; text-align: left; border: 1px solid #e0e0e0;\"\u003eStock Output\u003c\/th\u003e\n\u003ctd style=\"padding: 10px; border: 1px solid #e0e0e0;\"\u003e160-166 hp \/ 160-161 lb-ft\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth style=\"padding: 10px; text-align: left; border: 1px solid #e0e0e0;\"\u003eReplaces OEM Part #\u003c\/th\u003e\n\u003ctd style=\"padding: 10px; border: 1px solid #e0e0e0;\"\u003e15400, 156-6004, 1900-522202, 234-4797, 234-9040, 24803, 36531-RAA-A01, 36532-RAA-A01, 36532-RAD-305, 36532RAAA11, 5S4445, OS5106, SU6673\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/div\u003e\n\u003ch3\u003eCompatibility\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e2003-2007 Honda Accord DX 2.4L 4-Cylinder\u003c\/li\u003e\n\u003cli\u003e2003-2007 Honda Accord EX 2.4L 4-Cylinder\u003c\/li\u003e\n\u003cli\u003e2003-2007 Honda Accord LX 2.4L 4-Cylinder\u003c\/li\u003e\n\u003cli\u003e2006-2007 Honda Accord Special Edition 2.4L 4-Cylinder\u003c\/li\u003e\n\u003cli\u003e2006-2007 Honda Accord Value Package 2.4L 4-Cylinder\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eFrequently Asked Questions \u0026amp; Fitment Warnings\u003c\/h3\u003e\n\u003ch4\u003eDoes this fit the CM5\/CM7 Accord?\u003c\/h4\u003e\n\u003cp\u003eYes, this is a direct fit for the 2003-2007 Honda Accord equipped with the \u003cstrong\u003eK24A4\u003c\/strong\u003e or \u003cstrong\u003eK24A8\u003c\/strong\u003e 2.4L engine. \u003cstrong\u003eThis kit does not fit 3.0L V6 (J30A4\/J30A5) or Hybrid models.\u003c\/strong\u003e\u003c\/p\u003e\n\u003ch4\u003eDo I need to reset the ECM after installing these sensors?\u003c\/h4\u003e\n\u003cp\u003eYes, clear all diagnostic trouble codes using an OBD-II scanner and execute a complete drive cycle so the engine control module can relearn base fuel trim values.\u003c\/p\u003e\n\u003ch3\u003eThe Honda Calibration Standard\u003c\/h3\u003e\n\u003cp\u003eHonda's K-series platform relies on rapid, pinpoint AFR feedback to balance high-revving VTEC efficiency with low-rpm fuel economy. Installing a matched upstream and downstream sensor set ensures consistent voltage delivery, restoring crisp throttle response and factory-grade engine performance.\u003c\/p\u003e","brand":"VelocityMax","offers":[{"title":"Default Title","offer_id":67551283511544,"sku":"DS-EITWVCHIZ","price":79.95,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0800\/1290\/2648\/files\/o2-oxygen-sensor-upstream-downstream-for-honda-accord-2003-2007-2-4l-1.jpg?v=1790794540","url":"https:\/\/performancechiptuning.com\/fr\/products\/o2-oxygen-sensor-upstream-downstream-for-honda-accord-2003-2007-2-4l","provider":"Performance Chip Tuning","version":"1.0","type":"link"}