{"product_id":"o2-oxygen-sensor-upstream-downstream-for-infiniti-qx56-2008-2010-5-6l","title":"O2 Oxygen Sensor Upstream Downstream for Infiniti QX56 (2008-2010) 5.6L","description":"\u003ch2 style=\"font-size: clamp(18px, 3vw, 21px); margin-bottom: 15px; line-height: 1.3;\"\u003eDirect-Fit Complete Oxygen Sensor Kit for 2008-2010 Infiniti QX56 (JA60)\u003c\/h2\u003e\n\n\u003cp\u003e\u003cstrong\u003eWhat it Does:\u003c\/strong\u003e The complete upstream and downstream oxygen sensor kit replaces degraded factory sensors on the 2008-2010 Infiniti QX56 to restore closed-loop fuel metering, clear diagnostic trouble codes, and optimize stoichiometric combustion efficiency.\u003c\/p\u003e\n\n\u003ch3\u003eThe Stock Infiniti QX56 Sensor Degradation\u003c\/h3\u003e\n\u003cp\u003eOver extended heat cycles and high mileage, factory zirconium sensors on the \u003cstrong\u003eVK56DE\u003c\/strong\u003e suffer from silica glaze accumulation, carbon fouling, and internal heater circuit failure. Sluggish switching response prevents the ECM from accurately adjusting short-term fuel trims. This thermal fatigue leads to unburned hydrocarbon wash, diminished fuel economy, rich-running conditions, and recurring catalyst efficiency DTCs like P0420 and P0430 on the \u003cstrong\u003eJA60\u003c\/strong\u003e platform.\u003c\/p\u003e\n\n\u003ch3\u003eThe Engineering Solution\u003c\/h3\u003e\n\u003cp\u003eThis four-sensor matched replacement kit delivers synchronized lambda signal frequency across both cylinder banks. Engineered with high-grade ceramic sensing elements and dual-layer stainless steel shields, each sensor resists severe thermal shock and exhaust gas particulate contamination. Factory-pinned pigtails eliminate wire splicing, ensuring uninterrupted millivolt signaling to the engine computer for stable idle dynamics and precise air-fuel ratio regulation.\u003c\/p\u003e\n\n\u003ch3\u003eWhat's Included\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003e2x Upstream Oxygen Sensors (Air-Fuel Ratio Sensors)\u003c\/li\u003e\n  \u003cli\u003e2x Downstream Oxygen Sensors\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;\"\u003e2008-2010 Infiniti QX56\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\u003eVK56DE\u003c\/strong\u003e \/ \u003cstrong\u003eJA60\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;\"\u003eStock Output\u003c\/th\u003e\n\u003ctd style=\"padding:10px; border: 1px solid #e0e0e0;\"\u003e320 hp \/ 393 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;\"\u003e\n\u003cstrong\u003e226A0-7S001\u003c\/strong\u003e, \u003cstrong\u003e234-9039\u003c\/strong\u003e, \u003cstrong\u003e250-54037\u003c\/strong\u003e, \u003cstrong\u003e250-54109\u003c\/strong\u003e, \u003cstrong\u003eES20172\u003c\/strong\u003e, \u003cstrong\u003eOS5393\u003c\/strong\u003e, \u003cstrong\u003eSG1692\u003c\/strong\u003e, \u003cstrong\u003e234-4835\u003c\/strong\u003e, \u003cstrong\u003e234-9038\u003c\/strong\u003e, \u003cstrong\u003e18213-82Z20\u003c\/strong\u003e, \u003cstrong\u003e22690-8U300\u003c\/strong\u003e, \u003cstrong\u003e22693-1AA0A\u003c\/strong\u003e, \u003cstrong\u003e22693-1AA0B\u003c\/strong\u003e, \u003cstrong\u003e22693-8W90A\u003c\/strong\u003e, \u003cstrong\u003e226A0-8U300\u003c\/strong\u003e, \u003cstrong\u003e226931AA0B\u003c\/strong\u003e, \u003cstrong\u003e226938W90A\u003c\/strong\u003e, \u003cstrong\u003e22693ET000\u003c\/strong\u003e\n\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\u003e2008 Infiniti QX56 Base 5.6L V8 (VK56DE)\u003c\/li\u003e\n  \u003cli\u003e2009 Infiniti QX56 Base 5.6L V8 (VK56DE)\u003c\/li\u003e\n  \u003cli\u003e2010 Infiniti QX56 Base 5.6L V8 (VK56DE)\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 JA60 QX56?\u003c\/h4\u003e\n\u003cp\u003eYes, this is a direct fit for the 2008-2010 Infiniti QX56 equipped with the \u003cstrong\u003eVK56DE\u003c\/strong\u003e 5.6L V8 engine.\u003c\/p\u003e\n\n\u003ch4\u003eAre these sensors plug-and-play or do they require wiring modifications?\u003c\/h4\u003e\n\u003cp\u003eThese sensors feature direct-fit OE-style harness connectors and correct pigtail lengths, requiring no cutting, splicing, or ECU recalibration.\u003c\/p\u003e\n\n\u003ch3\u003eThe Infiniti Heavy-Duty Standard\u003c\/h3\u003e\n\u003cp\u003eEngineered to endure the intense exhaust temperatures and continuous load demands of the full-size \u003cstrong\u003eJA60\u003c\/strong\u003e platform, these sensors maintain rapid switching speeds to protect your catalytic converters during heavy towing.\u003c\/p\u003e","brand":"VelocityMax","offers":[{"title":"Default Title","offer_id":67551475892472,"sku":"DS-E1GXZ80TX","price":89.95,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0800\/1290\/2648\/files\/o2-oxygen-sensor-upstream-downstream-for-infiniti-qx56-2008-2010-5-6l-1.jpg?v=1790796924","url":"https:\/\/performancechiptuning.com\/products\/o2-oxygen-sensor-upstream-downstream-for-infiniti-qx56-2008-2010-5-6l","provider":"Performance Chip Tuning","version":"1.0","type":"link"}