{"product_id":"oxygen-sensors-for-ford-ranger-2001-2011-2-3l-upstream-downstream","title":"Oxygen Sensors for Ford Ranger (2001-2011) 2.3L Upstream \u0026 Downstream","description":"\u003ch2\u003eDirect-Fit Dual Oxygen Sensor Kit for 2001-2011 Ford Ranger\u003c\/h2\u003e\n\n\u003cp\u003e\u003cstrong\u003eWhat it Does:\u003c\/strong\u003e The Oxygen Sensor Kit replaces degraded factory exhaust stream probes on the 2001-2011 Ranger to restore precise closed-loop fuel metering and eliminate catalyst efficiency trouble codes.\u003c\/p\u003e\n\n\u003ch3\u003eThe Stock Ford Ranger Sensor Degradation\u003c\/h3\u003e\n\u003cp\u003eExhaust gas monitoring degrades significantly over extended duty cycles in the \u003cstrong\u003ePN105\u003c\/strong\u003e chassis. The factory zirconia sensing element suffers from carbon coating, thermal fatigue, and silicone contamination, causing sluggish millivolt switching response. On the \u003cstrong\u003eDuratec 23\u003c\/strong\u003e powertrain, a lazy upstream sensor forces the powertrain control module (PCM) into rich-running defensive defaults, fouling spark plugs and causing fuel wash on cylinder walls. Simultaneously, worn downstream sensors misread post-catalytic conversion, erroneously triggering P0420 catalytic efficiency codes and failing state emissions inspections.\u003c\/p\u003e\n\n\u003ch3\u003eThe Engineering Solution\u003c\/h3\u003e\n\u003cp\u003eThis paired replacement kit features precision planar zirconia ceramic sensing cores engineered to deliver rapid microsecond switching response between lean and rich Lambda values. Built with dual-layer protective stainless steel shields to resist thermal shock, exhaust debris, and soot impingement, each sensor ensures long-term signal accuracy. The direct-fit weatherproof connectors—coded in blue and teal\/green—mate directly to the factory harness with zero wire splicing, preventing signal-degrading resistance changes. High-temperature fiberglass sleeving protects the signal lead wiring against high exhaust manifold radiant heat.\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;\"\u003e2001-2011 Ford Ranger\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;\"\u003eDuratec 23 (2.3L DOHC) \/ PN105\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;\"\u003e143 hp \/ 154 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\u003e2001-2011 Ford Ranger XL 2.3L L4 Gas\u003c\/li\u003e\n  \u003cli\u003e2001-2011 Ford Ranger XLT 2.3L L4 Gas\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eFrequently Asked Questions\u003c\/h3\u003e\n\u003cp\u003e\u003cstrong\u003eDoes this fit the PN105 Ranger?\u003c\/strong\u003e\u003cbr\u003e Yes, this is a direct fit for the 2001-2011 Ford Ranger equipped with the Duratec 23 engine.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eDo these sensors require wire cutting or repinning?\u003c\/strong\u003e\u003cbr\u003e No, these feature direct-fit OEM-style connectors designed to plug straight into the factory wiring harness without modification.\u003c\/p\u003e\n\n\u003ch3\u003eThe Ford Truck Durability Standard\u003c\/h3\u003e\n\u003cp\u003eEngineered to handle sustained utility duty and high-vibration truck applications, this dual sensor kit maintains stable air-fuel management to ensure dependable hauling, clean idle manners, and maximum engine service life under load.\u003c\/p\u003e","brand":"VelocityMax","offers":[{"title":"Default Title","offer_id":50511106244856,"sku":"DS-EPM4U7EGC","price":79.95,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0800\/1290\/2648\/files\/oxygen-sensors-for-ford-ranger-2001-2011-2-3l-upstream-downstream-1.jpg?v=1789410270","url":"https:\/\/performancechiptuning.com\/fr\/products\/oxygen-sensors-for-ford-ranger-2001-2011-2-3l-upstream-downstream","provider":"Performance Chip Tuning","version":"1.0","type":"link"}