{"product_id":"oxygen-sensors-for-ford-escape-ecosport-2017-2021-1-0l-1-5l-downstream","title":"Oxygen Sensors for Ford Escape EcoSport (2017-2021) 1.0L, 1.5L Downstream","description":"\u003ch2\u003eDirect-Fit Downstream Oxygen Sensor for 2017-2021 Ford Escape,EcoSport\u003c\/h2\u003e\n\n\u003cp\u003e\u003cstrong\u003eWhat it Does:\u003c\/strong\u003e The Downstream Oxygen Sensor monitors post-catalytic exhaust gas composition on the 2017-2021 Ford Escape and EcoSport to verify catalyst conversion efficiency and correct secondary air-fuel trim feedback.\u003c\/p\u003e\n\n\u003ch3\u003eThe Stock Ford Escape,EcoSport Sensor Degradation\u003c\/h3\u003e\n\u003cp\u003eFactory downstream sensors on the \u003cstrong\u003eC520\u003c\/strong\u003e Escape and \u003cstrong\u003eB515\u003c\/strong\u003e EcoSport suffer from chronic exposure to thermal cycling, carbon particulates, and moisture buildup in the lower exhaust stream. Over time, the internal planar ceramic substrate fouls or the heater circuit fails, leading to lazy voltage transition rates. This latency triggers diagnostic trouble codes such as P0136, P0141, or false-positive P0420 catalyst efficiency codes, forcing the engine control module to default to open-loop enrichment strategies that degrade fuel economy and increase tailpipe emissions.\u003c\/p\u003e\n\n\u003ch3\u003eThe Engineering Solution\u003c\/h3\u003e\n\u003cp\u003eEngineered to resolve diagnostic errors and restore accurate post-cat monitoring, this direct-fit downstream sensor utilizes a refined zirconia solid-electrolyte sensing element protected by a dual-layer stainless steel shield. The high-response internal ceramic heater rapidly achieves operational temperature (approx. 600°F) to shorten cold-start emissions delay. Factory-matched harness connectors and precision-machined M18x1.5 threads ensure a plug-and-play installation without wire splicing or pin repinning, maintaining OE-level signal fidelity across standard 0.1V to 0.9V switching thresholds.\u003c\/p\u003e\n\n\u003ch3\u003eTechnical Specifications\u003c\/h3\u003e\n\u003ctable width=\"100%\" style=\"border-collapse: collapse; border: 1px solid #e0e0e0; font-size: 14px; margin-bottom: 20px;\"\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;\"\u003e2017-2021 Ford Escape,EcoSport\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;\"\u003e1.0L Fox, 1.5L EcoBoost \/ C520, B515\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;\"\u003e123-179 hp \/ 125-177 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;\"\u003eN\/A\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/table\u003e\n\n\u003ch3\u003eCompatibility\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003e2017-2019 Ford Escape 1.5L EcoBoost 4-Cylinder (Downstream)\u003c\/li\u003e\n  \u003cli\u003e2018-2021 Ford EcoSport 1.0L EcoBoost 3-Cylinder (Downstream)\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eFrequently Asked Questions\u003c\/h3\u003e\n\u003cp\u003e\u003cstrong\u003eDoes this fit the C520 Escape and B515 EcoSport?\u003c\/strong\u003e\u003cbr\u003e Yes, this is a direct fit for the 2017-2019 Ford Escape 1.5L EcoBoost and 2018-2021 Ford EcoSport 1.0L EcoBoost in the downstream exhaust position.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eWill this sensor clear an active P0420 or P0141 check engine light?\u003c\/strong\u003e\u003cbr\u003e If the code stems from sensor heater failure or delayed voltage switching rather than physical catalytic converter substrate meltdown, this replacement sensor clears the condition once ECM drive cycles complete.\u003c\/p\u003e\n\n\u003ch3\u003eThe Ford Calibration Standard\u003c\/h3\u003e\n\u003cp\u003eManufactured to meet strict OEM signal impedance and response tolerances, this downstream sensor ensures your EcoBoost powertrain delivers crisp engine response, stable idle control, and full emissions compliance without false diagnostic warnings.\u003c\/p\u003e","brand":"VelocityMax","offers":[{"title":"Default Title","offer_id":50511718318328,"sku":"DS-E3YVZEJDD","price":69.95,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0800\/1290\/2648\/files\/oxygen-sensors-for-ford-escape-ecosport-2017-2021-1-0l-1-5l-downstream-1.jpg?v=1789418375","url":"https:\/\/performancechiptuning.com\/products\/oxygen-sensors-for-ford-escape-ecosport-2017-2021-1-0l-1-5l-downstream","provider":"Performance Chip Tuning","version":"1.0","type":"link"}