{"product_id":"o2-oxygen-sensor-upstream-downstream-for-lincoln-town-car-1996-2011-4-6l","title":"O2 Oxygen Sensor Upstream Downstream for Lincoln Town Car (1996-2011) 4.6L","description":"\u003ch2 style=\"font-size: clamp(18px, 3vw, 21px); margin-bottom: 15px; line-height: 1.3;\"\u003eDirect-Fit Oxygen Sensor Set for 1996-2011 Lincoln Town Car (Panther FN145)\u003c\/h2\u003e\n\n\u003cp\u003e\u003cstrong\u003eWhat it Does:\u003c\/strong\u003e This 4-piece oxygen sensor set monitors exhaust gas stream chemistry on the 1996-2011 Lincoln Town Car to correct air-fuel mixtures, clear check engine lights, and restore factory fuel economy.\u003c\/p\u003e\n\n\u003ch3\u003eThe Stock Lincoln Town Car Sensor Degradation\u003c\/h3\u003e\n\u003cp\u003eOver extended operating cycles, factory zirconia oxygen sensors on the \u003cstrong\u003e4.6L Modular 2V\u003c\/strong\u003e suffer from thermal fatigue, soot contamination, and silicone poisoning. Degraded sensor response times cause slow voltage switching across the stoichiometric threshold, forcing the PCM into biased fuel trims. This unmetered rich or lean cycling leads to carbon fouled spark plugs, unburned fuel entering the catalytic converter, rough idle, and persistent OBD-II diagnostic trouble codes such as \u003cstrong\u003eP0130\u003c\/strong\u003e, \u003cstrong\u003eP0135\u003c\/strong\u003e, \u003cstrong\u003eP0150\u003c\/strong\u003e, and catalyst threshold efficiency codes \u003cstrong\u003eP0420\u003c\/strong\u003e and \u003cstrong\u003eP0430\u003c\/strong\u003e.\u003c\/p\u003e\n\n\u003ch3\u003eThe Engineering Solution\u003c\/h3\u003e\n\u003cp\u003eThis comprehensive replacement kit restores factory closed-loop loop speed utilizing precision planar ceramic sensing elements housed inside dual protective stainless steel shields. Engineered specifically for the exhaust heat environment of the \u003cstrong\u003ePanther\u003c\/strong\u003e platform, each sensor features factory-calibrated internal resistance heaters to reach operating temperatures rapidly, minimizing cold-start emissions. The direct-fit weatherproof connectors, correct wire lead lengths, and pre-threaded M18x1.5 bungs 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\u003e2x Upstream Oxygen Sensors (Pre-Catalytic Converter)\u003c\/li\u003e\n  \u003cli\u003e2x Downstream Oxygen Sensors (Post-Catalytic Converter)\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;\"\u003e1996-2011 Lincoln Town Car\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;\"\u003e4.6L Modular 2V SOHC V8 \/ Panther (FN36 \/ FN145)\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;\"\u003e210-239 hp \/ 275-287 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;\"\u003eSG1803, 18140, 234-4001, 234-4046, 234-4070, 234-4071, 234-4127, ES20014, SG1813, SG1814, SG726, SG459\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\u003e1996-2011 Lincoln Town Car 4.6L V8 (Executive, Signature, Cartier, Designer Series, Executive L, Signature L)\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 Panther Town Car?\u003c\/h4\u003e\n\u003cp\u003eYes, this is a direct fit for the 1996-2011 Lincoln Town Car equipped with the \u003cstrong\u003e4.6L Modular 2V\u003c\/strong\u003e engine across both short and long wheelbase chassis.\u003c\/p\u003e\n\n\u003ch4\u003eWhy should upstream and downstream sensors be replaced simultaneously?\u003c\/h4\u003e\n\u003cp\u003eAll four exhaust sensors share identical operational hours and thermal degradation rates; replacing the full set prevents skewed differential readings between upstream control loops and downstream catalyst monitoring.\u003c\/p\u003e\n\n\u003ch3\u003eThe Lincoln Standard\u003c\/h3\u003e\n\u003cp\u003eBuilt to handle the demanding duty cycles of fleet and luxury livery service, these sensors restore smooth closed-loop engine management, preserve expensive catalytic converters, and ensure dependable emissions compliance across high-mileage running conditions.\u003c\/p\u003e","brand":"VelocityMax","offers":[{"title":"Default Title","offer_id":67910217957624,"sku":"DS-EIGWY0T3B","price":102.95,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0800\/1290\/2648\/files\/o2-oxygen-sensor-upstream-downstream-for-lincoln-town-car-1996-2011-4-6l-1.jpg?v=1793392712","url":"https:\/\/performancechiptuning.com\/es\/products\/o2-oxygen-sensor-upstream-downstream-for-lincoln-town-car-1996-2011-4-6l","provider":"Performance Chip Tuning","version":"1.0","type":"link"}