{"product_id":"o2-oxygen-sensor-upstream-downstream-for-nissan-altima-2013-2017-2-5l","title":"O2 Oxygen Sensor Upstream Downstream for Nissan Altima (2013-2017) 2.5L","description":"\u003ch2 style=\"font-size: clamp(18px, 3vw, 21px); margin-bottom: 15px; line-height: 1.3;\"\u003eDirect-Fit Upstream \u0026amp; Downstream Oxygen Sensor Set for 2013-2017 Nissan Altima (L33)\u003c\/h2\u003e\n\n\u003cp\u003e\u003cstrong\u003eWhat it Does:\u003c\/strong\u003e The Upstream and Downstream O2 Sensor Kit restores closed-loop air-fuel ratio management and catalyst monitoring on the 2013-2017 Nissan Altima to clear diagnostic check engine lights and normalize fuel trim levels.\u003c\/p\u003e\n\n\u003ch3\u003eThe Stock Nissan Altima Sensor Degradation\u003c\/h3\u003e\n\u003cp\u003eFactory oxygen sensors on the \u003cstrong\u003eL33\u003c\/strong\u003e chassis degrade over repeated thermal cycling and continuous exhaust gas exposure. Within the \u003cstrong\u003eQR25DE\u003c\/strong\u003e 2.5L powertrain, internal ceramic thimble elements experience slow response times, silica poisoning, and heater circuit burnout. This signal latency impedes the factory ECM's ability to maintain ideal stoichiometric closed-loop fueling, resulting in rich-running conditions, unburnt hydrocarbon build-up in the catalytic converter, and persistent diagnostic trouble codes such as P0130, P0138, and P0420.\u003c\/p\u003e\n\n\u003ch3\u003eThe Engineering Solution\u003c\/h3\u003e\n\u003cp\u003eThis matched upstream and downstream oxygen sensor set utilizes high-temperature planar zirconia ceramic sensing elements engineered for fast light-off times and continuous thermal endurance. Shielded in dual-layer stainless steel housings with laser-welded seams, these sensors resist thermal shock and silicone fouling. Precision-wound internal heating circuits facilitate rapid closed-loop transition, while OE-spec harness lengths and factory weather-pack connectors ensure plug-and-play installation without wire splicing or pin repinning.\u003c\/p\u003e\n\n\u003ch3\u003eWhat's Included\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003e1x Upstream Oxygen Sensor (OE Part: \u003cstrong\u003e22693-3TA0B\u003c\/strong\u003e)\u003c\/li\u003e\n  \u003cli\u003e1x Downstream Oxygen Sensor (OE Part: \u003cstrong\u003e226A0-3TA0B\u003c\/strong\u003e)\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;\"\u003e2013-2017 Nissan Altima\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\u003eQR25DE\u003c\/strong\u003e 2.5L \/ \u003cstrong\u003eL33\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;\"\u003e182 hp \/ 180 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\u003e22693-3TA0B\u003c\/strong\u003e, \u003cstrong\u003e226A0-3TA0B\u003c\/strong\u003e, \u003cstrong\u003eXPD-KKK-17611\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\u003e2013-2017 Nissan Altima 2.5 Base Sedan 4-Door (2.5L 2500CC L4)\u003c\/li\u003e\n  \u003cli\u003e2013-2017 Nissan Altima 2.5 S Sedan 4-Door (2.5L 2500CC L4)\u003c\/li\u003e\n  \u003cli\u003e2013-2017 Nissan Altima 2.5 SV Sedan 4-Door (2.5L 2500CC L4)\u003c\/li\u003e\n  \u003cli\u003e2013-2017 Nissan Altima 2.5 SL Sedan 4-Door (2.5L 2500CC L4)\u003c\/li\u003e\n  \u003cli\u003e2016-2017 Nissan Altima 2.5 SR Sedan 4-Door (2.5L 2500CC L4)\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 L33 Altima?\u003c\/h4\u003e\n\u003cp\u003eYes, this is a direct fit for the 2013-2017 Nissan Altima equipped with the \u003cstrong\u003eQR25DE\u003c\/strong\u003e 2.5L engine. \u003cstrong\u003eDoes not fit 3.5L V6 (VQ35DE) models.\u003c\/strong\u003e\u003c\/p\u003e\n\n\u003ch4\u003eAre threads pre-coated with anti-seize lubricant?\u003c\/h4\u003e\n\u003cp\u003eYes, sensor threads include high-temperature anti-seize compound directly out of the box to prevent galling into the exhaust bung during installation.\u003c\/p\u003e\n\n\u003ch3\u003eThe Nissan Precision Standard\u003c\/h3\u003e\n\u003cp\u003eCalibrated specifically for Nissan's factory engine management system, this replacement set ensures accurate air-fuel tracking, factory throttle response, and emissions readiness.\u003c\/p\u003e","brand":"VelocityMax","offers":[{"title":"Default Title","offer_id":67551284887800,"sku":"DS-E0GVVJMQ9","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-nissan-altima-2013-2017-2-5l-1.jpg?v=1790794574","url":"https:\/\/performancechiptuning.com\/products\/o2-oxygen-sensor-upstream-downstream-for-nissan-altima-2013-2017-2-5l","provider":"Performance Chip Tuning","version":"1.0","type":"link"}