{"product_id":"o2-oxygen-sensor-upstream-downstream-for-lincoln-blackwood-2002-2003-5-4l","title":"O2 Oxygen Sensor Upstream Downstream for Lincoln Blackwood (2002-2003) 5.4L","description":"\u003ch2 style=\"font-size: clamp(18px, 3vw, 21px); margin-bottom: 15px; line-height: 1.3;\"\u003eDirect-Fit Oxygen Sensor Replacement Set for 2002-2003 Lincoln Blackwood (PN96)\u003c\/h2\u003e\n\n\u003cp\u003e\u003cstrong\u003eWhat it Does:\u003c\/strong\u003e The oxygen sensor set restores factory air-fuel metering and catalyst monitoring on the 2002-2003 Lincoln Blackwood to eliminate check engine lights and recover lost fuel economy.\u003c\/p\u003e\n\n\u003ch3\u003eThe Stock Lincoln Blackwood Sensor Degradation\u003c\/h3\u003e\n\u003cp\u003eOver extended heat cycles and mileage, the factory zirconia planar elements inside the \u003cstrong\u003ePN96\u003c\/strong\u003e platform oxygen sensors become poisoned by exhaust blow-by, carbon deposits, and fuel additives. Degraded upstream sensors produce lazy switching response times, skewing short-term and long-term fuel trims rich or lean. This thermal aging causes unburnt hydrocarbon wash down, fouled spark plugs, hesitation under load, and diagnostic trouble codes such as \u003cstrong\u003eP0130\u003c\/strong\u003e, \u003cstrong\u003eP0150\u003c\/strong\u003e, \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 4-piece replacement set utilizes high-temperature dual-layer ceramic sensing elements housed in corrosion-resistant 304 stainless steel shells. Calibrated internal heaters guarantee rapid closed-loop activation during cold starts to curb cold-cycle emissions. Designed to mate directly to the factory harness with OEM-spec pin-outs, wire leads, and waterproof seals, each sensor threads cleanly into standard M18x1.5 bungs without wire slicing, restoring factory closed-loop stoichiometry and catalyst efficiency tracking.\u003c\/p\u003e\n\n\u003ch3\u003eWhat's Included\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003e2 Upstream Oxygen Sensors (Pre-Catalyst)\u003c\/li\u003e\n  \u003cli\u003e2 Downstream Oxygen Sensors (Post-Catalyst)\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;\"\u003e2002-2003 Lincoln Blackwood\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;\"\u003e5.4L DOHC InTech V8 \/ PN96\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;\"\u003e300 hp \/ 355 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;\"\u003eSG459, 234-4046, 234-4070, 234-4071, 234-4127, 234-4401, 234-4402, SG1801, SG1802, SG1803, SG1806, SG1807\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\u003e2002 Lincoln Blackwood Base 5.4L V8 DOHC Gas\u003c\/li\u003e\n  \u003cli\u003e2003 Lincoln Blackwood Base 5.4L V8 DOHC Gas\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 PN96 Blackwood?\u003c\/h4\u003e\n\u003cp\u003eYes, this is a direct fit for the 2002-2003 Lincoln Blackwood equipped with the \u003cstrong\u003e5.4L DOHC InTech\u003c\/strong\u003e engine; verify sensor positions and connectors before mounting.\u003c\/p\u003e\n\n\u003ch4\u003eWhat are the critical installation precautions for these sensors?\u003c\/h4\u003e\n\u003cp\u003eUse a designated slotted O2 sensor socket, apply anti-seize strictly to the threads while avoiding the sensor head, route harness pigtails clear of hot exhaust runners, and clear stored ECM codes after install.\u003c\/p\u003e\n\n\u003ch3\u003eThe Lincoln Durability Standard\u003c\/h3\u003e\n\u003cp\u003eEngineered to handle sustained exhaust heat and towing duty cycles, these oxygen sensors maintain accurate AFR feedback under load to safeguard engine internals and catalytic converter longevity.\u003c\/p\u003e","brand":"VelocityMax","offers":[{"title":"Default Title","offer_id":67910115754232,"sku":"DS-EFXLV022R","price":101.95,"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-blackwood-2002-2003-5-4l-1.jpg?v=1793392610","url":"https:\/\/performancechiptuning.com\/fr\/products\/o2-oxygen-sensor-upstream-downstream-for-lincoln-blackwood-2002-2003-5-4l","provider":"Performance Chip Tuning","version":"1.0","type":"link"}