{"product_id":"oxygen-sensors-for-saturn-vue-2008-2009-2-4l-upstream-downstream","title":"Oxygen Sensors for Saturn Vue (2008-2009) 2.4L Upstream \u0026 Downstream","description":"\u003ch2\u003eDirect-Fit Oxygen Sensor Kit for 2008-2009 Saturn Vue\u003c\/h2\u003e\n\n\u003cp\u003e\u003cstrong\u003eWhat it Does:\u003c\/strong\u003e The Oxygen Sensor Kit replaces degraded upstream and downstream lambda sensors on the 2008-2009 Vue to restore factory closed-loop air-fuel ratio feedback and eliminate emissions trouble codes.\u003c\/p\u003e\n\n\u003ch3\u003eThe Stock Saturn Vue Sensor Degradation\u003c\/h3\u003e\n\u003cp\u003eOver extended heat cycles, factory zirconia oxygen sensors on the \u003cstrong\u003eGM Theta\u003c\/strong\u003e platform suffer from severe contamination. Exposure to exhaust carbon, blow-by oil vapors, and thermal fatigue degrades the porous platinum electrode. In the 2.4L engine, this causes sluggish switching response (cross-counts) between rich and lean conditions. A slow upstream sensor causes the powertrain control module (PCM) to miscalculate short-term fuel trim (STFT), driving rough idle, poor fuel economy, and fouled plugs, while a tired downstream sensor triggers false catalyst efficiency DTCs like P0420.\u003c\/p\u003e\n\n\u003ch3\u003eThe Engineering Solution\u003c\/h3\u003e\n\u003cp\u003eThis 2-piece upstream and downstream sensor set restores precise Closed-Loop feedback to the factory engine management system. Each sensor features a fast-acting ceramic heater core that brings the zirconia element to operating temperature in seconds, drastically cutting cold-start open-loop emissions. Built with a 304 stainless steel body, dual-layer protective external shield, and high-temp PTFE lead wire insulation, these units resist thermal shock and silicon fouling. Factory-pinned connectors plug directly into the OEM harness with zero wire splicing or repinning required.\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;\"\u003e2008-2009 Saturn Vue\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;\"\u003e2.4L LE5 Ecotec \/ GM Theta\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;\"\u003e169 hp \/ 161 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\u003e2008 Saturn Vue XE (2.4L L4 LE5)\u003c\/li\u003e\n  \u003cli\u003e2008 Saturn Vue Green Line \/ Hybrid (2.4L L4 LAT)\u003c\/li\u003e\n  \u003cli\u003e2009 Saturn Vue XE (2.4L L4 LE5)\u003c\/li\u003e\n  \u003cli\u003e2009 Saturn Vue Hybrid (2.4L L4 LAT)\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eFrequently Asked Questions\u003c\/h3\u003e\n\u003cp\u003e\u003cstrong\u003eDoes this fit the GM Theta Vue?\u003c\/strong\u003e\u003cbr\u003e Yes, this is a direct fit for the 2008-2009 Saturn Vue equipped with the 2.4L LE5 Ecotec engine.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eDo I need to clear PCM trouble codes after installing these sensors?\u003c\/strong\u003e\u003cbr\u003e Yes, use an OBD-II scanner to clear active and pending DTCs so the PCM can immediately relearn baseline fuel trims.\u003c\/p\u003e\n\n\u003ch3\u003eThe Saturn Reliability Standard\u003c\/h3\u003e\n\u003cp\u003eMaintain consistent stoichiometric balance and pass state emissions tests without electrical compromises. Designed for long-term resistance against thermal stress and vibration in daily driving conditions.\u003c\/p\u003e","brand":"VelocityMax","offers":[{"title":"Default Title","offer_id":50511140356344,"sku":"DS-EPENYDSWT","price":79.95,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0800\/1290\/2648\/files\/oxygen-sensors-for-saturn-vue-2008-2009-2-4l-upstream-downstream-1.jpg?v=1789410642","url":"https:\/\/performancechiptuning.com\/fr\/products\/oxygen-sensors-for-saturn-vue-2008-2009-2-4l-upstream-downstream","provider":"Performance Chip Tuning","version":"1.0","type":"link"}