{"product_id":"o2-oxygen-sensor-upstream-downstream-for-toyota-corolla-2009-2010-1-8l","title":"O2 Oxygen Sensor Upstream Downstream for Toyota Corolla (2009-2010) 1.8L","description":"\u003ch2 style=\"font-size: clamp(18px, 3vw, 21px); margin-bottom: 15px; line-height: 1.3;\"\u003eDirect-Fit O2 Oxygen Sensor Kit for 2009-2010 Toyota Corolla (E140)\u003c\/h2\u003e\u003cp\u003e\u003cstrong\u003eWhat it Does:\u003c\/strong\u003e This matched upstream and downstream oxygen sensor kit monitors exhaust gases on the \u003cstrong\u003eE140\u003c\/strong\u003e 2009-2010 Toyota Corolla \u003cstrong\u003e2ZR-FE 1.8L\u003c\/strong\u003e to regulate fuel trims and catalyst efficiency.\u003c\/p\u003e\u003ch3\u003eThe Stock Toyota Corolla Sensor Degradation\u003c\/h3\u003e\u003cp\u003eOn high-mileage \u003cstrong\u003eE140\u003c\/strong\u003e models with the \u003cstrong\u003e2ZR-FE 1.8L\u003c\/strong\u003e engine, factory oxygen sensors suffer thermal cycling fatigue, silicon contamination, and carbon fouling on the zirconia sensing tip. As internal heater resistance climbs, the upstream air-fuel ratio sensor lags behind throttle transitions. This delayed feedback skews closed-loop fuel trims, commonly triggering \u003cstrong\u003eP0136\u003c\/strong\u003e, \u003cstrong\u003eP0138\u003c\/strong\u003e, \u003cstrong\u003eP2195\u003c\/strong\u003e, or lean \u003cstrong\u003eP0171\u003c\/strong\u003e diagnostic trouble codes.\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 Faulty heater circuits or slow response trigger \u003cstrong\u003eP0136\u003c\/strong\u003e, \u003cstrong\u003eP0138\u003c\/strong\u003e, \u003cstrong\u003eP2195\u003c\/strong\u003e, or \u003cstrong\u003eP0420\u003c\/strong\u003e codes.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eRich Exhaust \u0026amp; Fuel Loss:\u003c\/strong\u003e Degraded AFR feedback forces rich open-loop fueling, reducing MPG.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eRough Idle \u0026amp; Failed Emissions:\u003c\/strong\u003e Delayed closed-loop correction causes hesitation and high tailpipe hydrocarbons.\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eThe Direct-Fit Zirconia Sensor Solution\u003c\/h3\u003e\u003cp\u003eReplacing both exhaust positions as a matched set restores accurate upstream-to-downstream signal integrity. Built with stainless steel housings, protective PTFE breather membranes, and OEM-calibrated planar ceramic elements, these sensors resist thermal shock and moisture ingress. Each unit features factory-length insulated leads, heat-shielded sleeving, and keyed OEM-style connectors matching \u003cstrong\u003eSU-000112\u003c\/strong\u003e specifications for direct plug-and-play installation without splicing.\u003c\/p\u003e\u003ch3\u003eWhat's Included\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003e1 Upstream Air Fuel Ratio Sensor\u003c\/li\u003e\n\u003cli\u003e1 Downstream Oxygen Sensor\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;\"\u003e2009-2010 Toyota Corolla\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;\"\u003e2ZR-FE 1.8L \/ E140\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;\"\u003eSensor Architecture\u003c\/th\u003e\n\u003ctd style=\"padding:10px; border: 1px solid #e0e0e0;\"\u003eUpstream AFR \u0026amp; Downstream Zirconia (4-Wire Heated)\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;\"\u003eSU-000112\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/table\u003e\u003c\/div\u003e\u003ch3\u003eCompatibility\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003e2009 Toyota Corolla 1.8L (\u003cstrong\u003e2ZR-FE\u003c\/strong\u003e \/ \u003cstrong\u003eE140\u003c\/strong\u003e)\u003c\/li\u003e\n\u003cli\u003e2010 Toyota Corolla 1.8L (\u003cstrong\u003e2ZR-FE\u003c\/strong\u003e \/ \u003cstrong\u003eE140\u003c\/strong\u003e)\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eFrequently Asked Questions \u0026amp; Fitment Warnings\u003c\/h3\u003e\u003ch4\u003eDoes this fit the E140 Corolla?\u003c\/h4\u003e\u003cp\u003e\u003cstrong\u003eYes.\u003c\/strong\u003e Direct fit for 2009-2010 Toyota Corolla models with the \u003cstrong\u003e2ZR-FE 1.8L\u003c\/strong\u003e engine. \u003cstrong\u003eExcludes 2.4L 2AZ-FE XRS trims; confirm engine size before ordering.\u003c\/strong\u003e\u003c\/p\u003e\u003ch4\u003eWill this clear P0136, P0138, or P2195 codes?\u003c\/h4\u003e\u003cp\u003e\u003cstrong\u003eYes, if sensor-related.\u003c\/strong\u003e Installing matched sensors matching \u003cstrong\u003eSU-000112\u003c\/strong\u003e restores voltage response and heater resistance, clearing \u003cstrong\u003eP0136\u003c\/strong\u003e, \u003cstrong\u003eP0138\u003c\/strong\u003e, and \u003cstrong\u003eP2195\u003c\/strong\u003e codes after reset.\u003c\/p\u003e\u003ch4\u003eAre factory connectors included for installation?\u003c\/h4\u003e\u003cp\u003e\u003cstrong\u003eYes.\u003c\/strong\u003e Both sensors feature pre-terminated OEM plugs for tool-free wiring using a standard 22mm O2 socket.\u003c\/p\u003e\u003ch3\u003eThe Toyota Precision Standard\u003c\/h3\u003e\u003cp\u003eEngineered for factory ECM calibration, these matched sensors deliver reliable emissions compliance and consistent fuel economy on your \u003cstrong\u003eE140\u003c\/strong\u003e, restoring CEL-free operation.\u003c\/p\u003e","brand":"VelocityMax","offers":[{"title":"Default Title","offer_id":68094230987000,"sku":"DS-EEG2R657A","price":81.95,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0800\/1290\/2648\/files\/o2-oxygen-sensor-upstream-downstream-for-toyota-corolla-2009-2010-1-8l-1.jpg?v=1794617878","url":"https:\/\/performancechiptuning.com\/fr\/products\/o2-oxygen-sensor-upstream-downstream-for-toyota-corolla-2009-2010-1-8l","provider":"Performance Chip Tuning","version":"1.0","type":"link"}