{"product_id":"o2-oxygen-sensor-upstream-downstream-for-volvo-s80-2007-2010-4-4l","title":"O2 Oxygen Sensor Upstream Downstream for Volvo S80 (2007-2010) 4.4L","description":"\u003ch2 style=\"font-size: clamp(18px, 3vw, 21px); margin-bottom: 15px; line-height: 1.3;\"\u003eDirect-Fit O2 Oxygen Sensor Kit for 2007-2010 Volvo S80 (P3)\u003c\/h2\u003e\u003cp\u003e\u003cstrong\u003eWhat it Does:\u003c\/strong\u003e This 4-sensor kit monitors pre- and post-catalyst exhaust oxygen on the \u003cstrong\u003eP3\u003c\/strong\u003e 2007-2010 Volvo S80 \u003cstrong\u003eB8444S 4.4L V8\u003c\/strong\u003e to regulate fueling.\u003c\/p\u003e\u003ch3\u003eThe Stock Volvo S80 Oxygen Sensor Failure\u003c\/h3\u003e\u003cp\u003eFactory oxygen sensors on the \u003cstrong\u003eP3\u003c\/strong\u003e chassis with the \u003cstrong\u003eB8444S 4.4L V8\u003c\/strong\u003e fail from thermal cycling fatigue, carbon fouling, and internal heater burnout. Concentrated V8 exhaust manifold heat soak fractures the zirconia ceramic sensing element and degrades voltage switching speed. When reference passages clog or heater resistance spikes, the ECM logs codes like \u003cstrong\u003eP0130\u003c\/strong\u003e, \u003cstrong\u003eP0135\u003c\/strong\u003e, \u003cstrong\u003eP0150\u003c\/strong\u003e, or \u003cstrong\u003eP0420\/P0430\u003c\/strong\u003e and reverts to rich open-loop fueling.\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 \/ DTCs:\u003c\/strong\u003e \u003cstrong\u003eP0130\u003c\/strong\u003e, \u003cstrong\u003eP0135\u003c\/strong\u003e, \u003cstrong\u003eP0150\u003c\/strong\u003e, or \u003cstrong\u003eP0420\/P0430\u003c\/strong\u003e trigger from slow switching or heater faults.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eRich Running \u0026amp; Rough Idle:\u003c\/strong\u003e Biased voltage signals cause over-fueling, fouled plugs, and uneven idle.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFailed Emissions \u0026amp; Poor MPG:\u003c\/strong\u003e Open-loop control increases tailpipe hydrocarbons and drops highway fuel economy.\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eThe Direct-Fit Heated Zirconia Oxygen Sensor Solution\u003c\/h3\u003e\u003cp\u003eThis matched 4-sensor kit replaces both upstream and downstream sensors corresponding to OEM numbers \u003cstrong\u003eMHK500870\u003c\/strong\u003e and \u003cstrong\u003e30774700\u003c\/strong\u003e. Each unit features a high-purity zirconia ceramic sensing element inside a laser-welded stainless steel housing with a double-layered porous shield to resist thermal and moisture shock. Factory-matched harnesses and weather-sealed connectors ensure exact heater resistance and rapid light-off, restoring tight closed-loop lambda control on the \u003cstrong\u003eB8444S 4.4L V8\u003c\/strong\u003e without 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;\"\u003e2007-2010 Volvo S80\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;\"\u003e\n\u003cstrong\u003eB8444S 4.4L V8\u003c\/strong\u003e \/ \u003cstrong\u003eP3\u003c\/strong\u003e\n\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;\"\u003eEmissions \u0026amp; Sensing Element\u003c\/th\u003e\n\u003ctd style=\"padding:10px; border: 1px solid #e0e0e0;\"\u003eDirect-Fit Heated Zirconia Ceramic\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;\"\u003e\n\u003cstrong\u003eMHK500870\u003c\/strong\u003e, \u003cstrong\u003e30774700\u003c\/strong\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/table\u003e\u003c\/div\u003e\u003ch3\u003eCompatibility\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003e2007 Volvo S80 4.4L V8 (from chassis\/VIN 35288)\u003c\/li\u003e\n\u003cli\u003e2008-2010 Volvo S80 4.4L V8\u003c\/li\u003e\n\u003cli\u003eVolvo XC90 4.4L V8 (shared row; verify VIN)\u003c\/li\u003e\n\u003cli\u003eExcludes 3.2L and other S80 engines\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eFrequently Asked Questions \u0026amp; Fitment Warnings\u003c\/h3\u003e\u003ch4\u003eDoes this fit the P3 S80?\u003c\/h4\u003e\u003cp\u003e\u003cstrong\u003eYes.\u003c\/strong\u003e Fits 2007-2010 Volvo S80 \u003cstrong\u003eB8444S 4.4L V8\u003c\/strong\u003e (2007 from VIN 35288). \u003cstrong\u003eExcludes 3.2L and other S80 engines; verify VIN first.\u003c\/strong\u003e\u003c\/p\u003e\u003ch4\u003eWill this clear P0130\/P0420 codes and replace all sensors?\u003c\/h4\u003e\u003cp\u003e\u003cstrong\u003eYes.\u003c\/strong\u003e Replacing all 4 sensors resolves \u003cstrong\u003eP0130\u003c\/strong\u003e\/\u003cstrong\u003eP0150\u003c\/strong\u003e switching faults and restores catalyst monitoring for \u003cstrong\u003eP0420\/P0430\u003c\/strong\u003e diagnostics.\u003c\/p\u003e\u003ch4\u003eAre OEM connectors included for direct installation?\u003c\/h4\u003e\u003cp\u003e\u003cstrong\u003eYes.\u003c\/strong\u003e All four include factory connectors; lightly coat threads only with O2-safe anti-seize before installation.\u003c\/p\u003e\u003ch3\u003eThe Volvo Precision Standard\u003c\/h3\u003e\u003cp\u003eMatched lambda feedback maintains tight closed-loop fueling on your \u003cstrong\u003eP3\u003c\/strong\u003e S80 for clean emissions and CEL-free operation.\u003c\/p\u003e","brand":"VelocityMax","offers":[{"title":"Default Title","offer_id":68119248666872,"sku":"DS-E3U4UXRSS","price":197.95,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0800\/1290\/2648\/files\/o2-oxygen-sensor-upstream-downstream-for-volvo-s80-2007-2010-4-4l-1.jpg?v=1794718114","url":"https:\/\/performancechiptuning.com\/products\/o2-oxygen-sensor-upstream-downstream-for-volvo-s80-2007-2010-4-4l","provider":"Performance Chip Tuning","version":"1.0","type":"link"}