{"product_id":"o2-oxygen-sensor-upstream-downstream-for-ford-f-150-2018-2020-2-7l-turbo","title":"O2 Oxygen Sensor Upstream Downstream for Ford F-150 (2018-2020) 2.7L Turbo","description":"\u003ch2 style=\"font-size: clamp(18px, 3vw, 21px); margin-bottom: 15px; line-height: 1.3;\"\u003eDirect-Fit Upstream \u0026amp; Downstream O2 Sensor Kit for 2018-2020 Ford F-150 (P552)\u003c\/h2\u003e\u003cp\u003e\u003cstrong\u003eWhat it Does:\u003c\/strong\u003e This 4-piece O2 sensor kit restores closed-loop air-fuel metering and catalyst monitoring on 2018-2020 Ford F-150 (\u003cstrong\u003eP552\u003c\/strong\u003e) \u003cstrong\u003e2.7L EcoBoost V6\u003c\/strong\u003e trucks.\u003c\/p\u003e\u003ch3\u003eThe Stock Ford F-150 Sensor Failure\u003c\/h3\u003e\u003cp\u003eOn the \u003cstrong\u003eP552\u003c\/strong\u003e chassis with the twin-turbo \u003cstrong\u003e2.7L EcoBoost V6\u003c\/strong\u003e, OEM oxygen sensors endure intense exhaust heat soak during boost and towing. Thermal cycling fractures the internal zirconia element, burns out the heater circuit, and fouls the sensing tip with carbon deposits. As upstream wideband response slows, the PCM miscalculates fuel trims and triggers \u003cstrong\u003eP0135\u003c\/strong\u003e, \u003cstrong\u003eP0155\u003c\/strong\u003e, or \u003cstrong\u003eP0171\u003c\/strong\u003e codes.\u003c\/p\u003e\u003ch4\u003eCommon Symptoms of a Failing OEM O2 Sensor\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eCheck Engine Light \/ DTCs:\u003c\/strong\u003e Triggers \u003cstrong\u003eP0135\u003c\/strong\u003e, \u003cstrong\u003eP0155\u003c\/strong\u003e, or \u003cstrong\u003eP0420\u003c\/strong\u003e from open heater circuits or sluggish lambda switching.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eErratic Fuel Trims:\u003c\/strong\u003e Skewed air-fuel feedback causes rough idle and hesitation under boost.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFuel Economy Drop:\u003c\/strong\u003e Delayed closed-loop operation increases fuel consumption and causes failed emissions tests.\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eThe Direct-Fit Matched O2 Sensor Solution\u003c\/h3\u003e\u003cp\u003eReplacing all four sensors as a matched set eliminates bank-to-bank response lag on your \u003cstrong\u003e2.7L EcoBoost V6\u003c\/strong\u003e. Each sensor uses a laser-welded stainless housing, high-temperature ceramic element, and OEM-spec heater resistance matching \u003cstrong\u003e234-5173\u003c\/strong\u003e, \u003cstrong\u003e234-5174\u003c\/strong\u003e, and \u003cstrong\u003e234-8050\u003c\/strong\u003e. Factory weatherproof connectors and OEM-threaded bodies allow plug-and-play installation directly into stock exhaust bungs without cutting or splicing.\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;\"\u003e2018-2020 Ford F-150\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;\"\u003e2.7L EcoBoost V6 \/ P552\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 Engine Output\u003c\/th\u003e\n\u003ctd style=\"padding:10px; border: 1px solid #e0e0e0;\"\u003e325 hp \/ 400 lb-ft\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 (No Cutting or Welding)\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;\"\u003e234-5173, 234-5174, 234-8050\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/table\u003e\u003c\/div\u003e\u003ch3\u003eCompatibility\u003c\/h3\u003e\u003cul\u003e\u003cli\u003e2018-2020 Ford F-150 2.7L Turbo\u003c\/li\u003e\u003c\/ul\u003e\u003ch3\u003eFrequently Asked Questions \u0026amp; Fitment Warnings\u003c\/h3\u003e\u003ch4\u003eDoes this fit the P552 F-150?\u003c\/h4\u003e\u003cp\u003e\u003cstrong\u003eYes.\u003c\/strong\u003e Direct fit for 2018-2020 Ford F-150 \u003cstrong\u003e2.7L EcoBoost V6\u003c\/strong\u003e models. \u003cstrong\u003eExcludes 3.3L, 3.5L, 3.0L diesel, and 5.0L engines.\u003c\/strong\u003e\u003c\/p\u003e\u003ch4\u003eWill this clear P0135\/P0155 heater codes?\u003c\/h4\u003e\u003cp\u003e\u003cstrong\u003eYes.\u003c\/strong\u003e Matched sensors replacing \u003cstrong\u003e234-5173\u003c\/strong\u003e, \u003cstrong\u003e234-5174\u003c\/strong\u003e, and \u003cstrong\u003e234-8050\u003c\/strong\u003e restore proper heater resistance and closed-loop voltage, clearing sensor-induced faults after reset.\u003c\/p\u003e\u003ch4\u003eIs wire splicing required during installation?\u003c\/h4\u003e\u003cp\u003e\u003cstrong\u003eNo.\u003c\/strong\u003e All four units feature OEM-style locking plugs and direct-thread bungs for straightforward bolt-in installation.\u003c\/p\u003e\u003ch3\u003eThe Ford Heavy-Duty Standard\u003c\/h3\u003e\u003cp\u003eBuilt to withstand twin-turbo exhaust temperatures during heavy towing and hauling on the \u003cstrong\u003eP552\u003c\/strong\u003e platform. Maintain accurate closed-loop fueling and dependable thermal durability.\u003c\/p\u003e","brand":"VelocityMax","offers":[{"title":"Default Title","offer_id":68107212194040,"sku":"DS-E21SQRT23","price":99.95,"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-f-150-2018-2020-2-7l-turbo-1.jpg?v=1794680852","url":"https:\/\/performancechiptuning.com\/products\/o2-oxygen-sensor-upstream-downstream-for-ford-f-150-2018-2020-2-7l-turbo","provider":"Performance Chip Tuning","version":"1.0","type":"link"}