{"product_id":"o2-oxygen-sensor-upstream-downstream-for-ford-explorer-2013-2015-3-5l-turbo","title":"O2 Oxygen Sensor Upstream Downstream for Ford Explorer (2013-2015) 3.5L Turbo","description":"\u003ch2 style=\"font-size: clamp(18px, 3vw, 21px); margin-bottom: 15px; line-height: 1.3;\"\u003eDirect-Fit Upstream \u0026amp; Downstream O2 Oxygen Sensor Kit for 2013-2015 Ford Explorer (U502)\u003c\/h2\u003e\u003cp\u003e\u003cstrong\u003eWhat it Does:\u003c\/strong\u003e This 4-piece upstream and downstream oxygen sensor kit restores accurate air-fuel ratio feedback and catalyst monitoring for the 2013-2015 Ford Explorer (\u003cstrong\u003eU502\u003c\/strong\u003e) equipped with the \u003cstrong\u003e3.5L EcoBoost GTDI V6\u003c\/strong\u003e engine.\u003c\/p\u003e\u003ch3\u003eThe Stock Ford Explorer O2 Sensor Failure\u003c\/h3\u003e\u003cp\u003eOn the \u003cstrong\u003eU502\u003c\/strong\u003e platform powered by the twin-turbocharged \u003cstrong\u003e3.5L EcoBoost GTDI V6\u003c\/strong\u003e, factory upstream wideband and downstream narrowband oxygen sensors endure severe exhaust gas temperatures and turbocharger heat soak. Repeated thermal cycling fractures the internal zirconia ceramic element, degrades the internal heater circuit, and fouls the sensing tip with carbon soot or oil vapor. This causes sluggish voltage switching, skewed fuel trims, and persistent OBD-II fault codes such as \u003cstrong\u003eP0130\u003c\/strong\u003e, \u003cstrong\u003eP0150\u003c\/strong\u003e, \u003cstrong\u003eP0135\u003c\/strong\u003e, and \u003cstrong\u003eP0420\u003c\/strong\u003e.\u003c\/p\u003e\u003ch4\u003eCommon Symptoms of a Failing OEM Oxygen Sensor\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eCheck Engine Light \u0026amp; DTCs:\u003c\/strong\u003e Triggers codes like \u003cstrong\u003eP0130\u003c\/strong\u003e, \u003cstrong\u003eP0150\u003c\/strong\u003e (slow response), \u003cstrong\u003eP0135\u003c\/strong\u003e\/\u003cstrong\u003eP0141\u003c\/strong\u003e (heater circuit failure), or \u003cstrong\u003eP0420\u003c\/strong\u003e\/\u003cstrong\u003eP0430\u003c\/strong\u003e catalyst efficiency faults.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eRich Running \u0026amp; Fuel Loss:\u003c\/strong\u003e Skewed lambda signals force open-loop enrichment, causing rough idle, tailpipe soot, and reduced fuel economy under boost.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eHesitation \u0026amp; Failed Emissions:\u003c\/strong\u003e Delayed closed-loop feedback causes throttle stumble during turbo spool and prevents emissions readiness monitors from setting.\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eThe Direct-Fit Heated Zirconia Oxygen Sensor Solution\u003c\/h3\u003e\u003cp\u003eReplacing all four Bank 1 and Bank 2 sensors as a matched set restores synchronized closed-loop fueling and post-catalyst monitoring across both exhaust banks. Each sensor uses a high-purity zirconia ceramic sensing element, laser-welded stainless steel housing to prevent exhaust leaks, and a fast-acting internal heater for rapid light-off. Factory-length shielded harnesses and keyed weatherproof connectors ensure plug-and-play installation into stock bungs with zero splicing, directly replacing \u003cstrong\u003e234-5113\u003c\/strong\u003e, \u003cstrong\u003e234-4489\u003c\/strong\u003e, and \u003cstrong\u003e234-4491\u003c\/strong\u003e.\u003c\/p\u003e\u003ch3\u003eWhat's Included\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003e2 Upstream Oxygen Sensors\u003c\/li\u003e\n\u003cli\u003e2 Downstream Oxygen Sensors\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eTechnical Specifications\u003c\/h3\u003e\u003cdiv style=\"overflow-x: auto; margin-bottom: 20px;\"\u003e\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;\"\u003e2013-2015 Ford Explorer\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;\"\u003e3.5L EcoBoost GTDI V6 (3.5L Turbo) \/ U502\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;\"\u003eSensor Architecture\u003c\/th\u003e\n\u003ctd style=\"padding:10px; border: 1px solid #e0e0e0;\"\u003e2x Upstream Wideband \u0026amp; 2x Downstream Heated Zirconia\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth style=\"padding:10px; text-align: left; border: 1px solid #e0e0e0;\"\u003eInstallation Type\u003c\/th\u003e\n\u003ctd style=\"padding:10px; border: 1px solid #e0e0e0;\"\u003eDirect Bolt-On OEM Replacement (Plug-and-Play Connectors)\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;\"\u003eReplaces OEM Part #\u003c\/th\u003e\n\u003ctd style=\"padding:10px; border: 1px solid #e0e0e0;\"\u003e234-5113, 234-4489, 234-4491\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/table\u003e\u003c\/div\u003e\u003ch3\u003eCompatibility\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003e2013 Ford Explorer 3.5L Turbo (U502)\u003c\/li\u003e\n\u003cli\u003e2014 Ford Explorer 3.5L Turbo (U502)\u003c\/li\u003e\n\u003cli\u003e2015 Ford Explorer 3.5L Turbo (U502)\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eFrequently Asked Questions \u0026amp; Fitment Warnings\u003c\/h3\u003e\u003ch4\u003eDoes this fit the U502 Explorer?\u003c\/h4\u003e\u003cp\u003e\u003cstrong\u003eYes.\u003c\/strong\u003e This is a direct fit for the 2013-2015 Ford Explorer (\u003cstrong\u003eU502\u003c\/strong\u003e) equipped with the \u003cstrong\u003e3.5L EcoBoost GTDI V6\u003c\/strong\u003e (3.5L Turbo) engine. \u003cstrong\u003eIt does not fit naturally aspirated 3.5L Ti-VCT or 2.0L EcoBoost models; confirm your engine before ordering.\u003c\/strong\u003e\u003c\/p\u003e\u003ch4\u003eWill this clear P0130, P0135, or P0420 codes across both banks?\u003c\/h4\u003e\u003cp\u003e\u003cstrong\u003eYes, when faulty sensors are the root cause.\u003c\/strong\u003e Replacing all four upstream and downstream sensors resolves heater circuit and slow-response DTCs like \u003cstrong\u003eP0130\u003c\/strong\u003e, \u003cstrong\u003eP0135\u003c\/strong\u003e, and \u003cstrong\u003eP0150\u003c\/strong\u003e on Bank 1 and Bank 2. If \u003cstrong\u003eP0420\u003c\/strong\u003e\/\u003cstrong\u003eP0430\u003c\/strong\u003e returns after installation, inspect the catalytic converters for substrate damage.\u003c\/p\u003e\u003ch4\u003eIs wire splicing or custom hardware required for installation?\u003c\/h4\u003e\u003cp\u003e\u003cstrong\u003eNo.\u003c\/strong\u003e All four sensors feature OEM-style keyed connectors and direct-fit threads replacing \u003cstrong\u003e234-5113\u003c\/strong\u003e, \u003cstrong\u003e234-4489\u003c\/strong\u003e, and \u003cstrong\u003e234-4491\u003c\/strong\u003e. Torque sensors into clean exhaust bungs and keep O2-safe anti-seize strictly on the threads, away from the sensing tip.\u003c\/p\u003e\u003ch3\u003eThe Ford Precision Standard\u003c\/h3\u003e\u003cp\u003eBuilt for the thermal demands of twin-turbocharged EcoBoost exhaust streams, this matched 4-piece sensor kit keeps your \u003cstrong\u003eU502\u003c\/strong\u003e Explorer operating with accurate closed-loop fueling and CEL-free emissions compliance. Reliable lambda feedback protects your turbochargers and catalytic converters from rich-running fuel wash and excessive exhaust temperatures.\u003c\/p\u003e","brand":"VelocityMax","offers":[{"title":"Default Title","offer_id":68107267277048,"sku":"DS-ERWCJVL2Z","price":81.95,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0800\/1290\/2648\/files\/o2-oxygen-sensor-upstream-downstream-for-ford-explorer-2013-2015-3-5l-turbo-1.jpg?v=1794681589","url":"https:\/\/performancechiptuning.com\/de\/products\/o2-oxygen-sensor-upstream-downstream-for-ford-explorer-2013-2015-3-5l-turbo","provider":"Performance Chip Tuning","version":"1.0","type":"link"}