{"product_id":"o2-oxygen-sensor-upstream-downstream-for-honda-accord-2008-2012-2-4l","title":"O2 Oxygen Sensor Upstream Downstream for Honda Accord (2008-2012) 2.4L","description":"\u003ch2 style=\"font-size: clamp(18px, 3vw, 21px); margin-bottom: 15px; line-height: 1.3;\"\u003eDirect-Fit Upstream and Downstream Oxygen Sensor Kit for 2008-2012 Honda Accord (CP2)\u003c\/h2\u003e\n\n\u003cp\u003e\u003cstrong\u003eWhat it Does:\u003c\/strong\u003e The upstream and downstream oxygen sensor kit monitors exhaust gas stoichiometry and catalyst efficiency on the 2008-2012 Honda Accord to restore precise closed-loop fueling and eliminate diagnostic trouble codes.\u003c\/p\u003e\n\n\u003ch3\u003eThe Stock Honda Accord Sensor Degradation\u003c\/h3\u003e\n\u003cp\u003eThe factory zirconia elements on the 8th generation Accord degrade from continuous thermal cycling, carbon soot buildup, and silica contamination in the exhaust stream. As response times lag, the ECM struggles to maintain the stoichiometric 14.7:1 air-fuel ratio. This sluggish feedback loop results in rich-running conditions, fouled spark plugs, premature catalytic converter degradation, and recurring Check Engine lights (P0135, P0134, P0420).\u003c\/p\u003e\n\n\u003ch3\u003eThe Engineering Solution\u003c\/h3\u003e\n\u003cp\u003eThis paired replacement set includes both the wideband air-fuel ratio sensor (upstream) and the secondary heated oxygen sensor (downstream). Built with planar ceramic sensing elements and integrated rapid-light-off internal heaters, these direct-fit sensors reach operating temperature in seconds. Double-sealed stainless steel protective bodies resist thermal shock and road debris intrusion, while factory-pinned waterproof terminals plug directly into the engine harness without splicing.\u003c\/p\u003e\n\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\n\u003ch3\u003eTechnical Specifications\u003c\/h3\u003e\n\u003cdiv style=\"overflow-x: auto; margin-bottom: 20px;\"\u003e\n  \u003ctable width=\"100%\" style=\"border-collapse: collapse; border: 1px solid #e0e0e0; font-size: 14px; min-width: 300px;\"\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;\"\u003e2008-2012 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;\"\u003e\n\u003cstrong\u003eK24Z2 \/ K24Z3\u003c\/strong\u003e \/ \u003cstrong\u003eCP2\u003c\/strong\u003e\n\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;\"\u003e177-190 hp \/ 161-162 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;\"\u003e\n\u003cstrong\u003e234-4462\u003c\/strong\u003e, \u003cstrong\u003e234-9091\u003c\/strong\u003e, \u003cstrong\u003e24434\u003c\/strong\u003e, \u003cstrong\u003e36531R40A01\u003c\/strong\u003e, \u003cstrong\u003e36531R40A06\u003c\/strong\u003e, \u003cstrong\u003e36531RB0003\u003c\/strong\u003e, \u003cstrong\u003e36531RTW003\u003c\/strong\u003e, \u003cstrong\u003e36531RWCA02\u003c\/strong\u003e, \u003cstrong\u003e36532R40A01\u003c\/strong\u003e, \u003cstrong\u003e800 21090 065\u003c\/strong\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003c\/table\u003e\n\u003c\/div\u003e\n\n\u003ch3\u003eCompatibility\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003e2008-2012 Honda Accord 2.4L (Sedan \u0026amp; Coupe)\u003c\/li\u003e\n  \u003cli\u003e2009-2014 Acura TSX 2.4L\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eFrequently Asked Questions \u0026amp; Fitment Warnings\u003c\/h3\u003e\n\u003ch4\u003eDoes this fit the CP2 Accord?\u003c\/h4\u003e\n\u003cp\u003eYes, this is a direct fit for the 2008-2012 Honda Accord equipped with the \u003cstrong\u003eK24Z2 \/ K24Z3\u003c\/strong\u003e 2.4L inline-four engine; it does not fit 3.5L V6 (J35) models.\u003c\/p\u003e\n\n\u003ch4\u003eShould anti-seize compound be applied to the threads before installation?\u003c\/h4\u003e\n\u003cp\u003eYes, coat the stainless steel threads with high-temperature anti-seize lubricant, taking care not to contaminate the protective sensor snout.\u003c\/p\u003e\n\n\u003ch3\u003eThe Honda Caliber\u003c\/h3\u003e\n\u003cp\u003eKeep your JDM four-cylinder powertrain operating at peak thermal and volumetric efficiency with accurate closed-loop signaling that protects your exhaust catalysts and restores crisp throttle dynamics.\u003c\/p\u003e","brand":"VelocityMax","offers":[{"title":"Default Title","offer_id":67551242354936,"sku":"DS-EHUW1K1MS","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-2008-2012-2-4l-1.jpg?v=1790793917","url":"https:\/\/performancechiptuning.com\/de\/products\/o2-oxygen-sensor-upstream-downstream-for-honda-accord-2008-2012-2-4l","provider":"Performance Chip Tuning","version":"1.0","type":"link"}