{"product_id":"o2-oxygen-sensor-upstream-downstream-for-mitsubishi-outlander-sport-2011-2012-2-0l","title":"O2 Oxygen Sensor Upstream Downstream for Mitsubishi Outlander Sport (2011-2012) 2.0L","description":"\u003ch2 style=\"font-size: clamp(18px, 3vw, 21px); margin-bottom: 15px; line-height: 1.3;\"\u003eDirect-Fit Upstream \u0026amp; Downstream O2 Oxygen Sensor Kit for 2011-2012 Mitsubishi Outlander Sport (GA2W)\u003c\/h2\u003e\u003cp\u003e\u003cstrong\u003eWhat it Does:\u003c\/strong\u003e This matched upstream and downstream oxygen sensor kit monitors exhaust air-fuel ratios and catalyst efficiency on the 2011-2012 Mitsubishi Outlander Sport (\u003cstrong\u003eGA2W\u003c\/strong\u003e) \u003cstrong\u003e4B11 2.0L\u003c\/strong\u003e to maintain closed-loop fuel trim accuracy.\u003c\/p\u003e\u003ch3\u003eThe Stock Mitsubishi Outlander Sport O2 Sensor Failure\u003c\/h3\u003e\u003cp\u003eFactory oxygen sensors on the \u003cstrong\u003eGA2W\u003c\/strong\u003e chassis with the \u003cstrong\u003e4B11 2.0L\u003c\/strong\u003e engine endure extreme exhaust heat cycling that degrades internal heater circuits and zirconia elements. Over time, carbon fouling, oil ash, and condensation fracture the ceramic substrate or burn out the heater coil, slowing voltage switching. Lagging sensor response disrupts ECU fuel trim control and triggers \u003cstrong\u003eP0134\u003c\/strong\u003e, \u003cstrong\u003eP0135\u003c\/strong\u003e, or \u003cstrong\u003eP0141\u003c\/strong\u003e fault codes.\u003c\/p\u003e\u003ch4\u003eCommon Symptoms of a Failing OEM O2 Sensor\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eCheck Engine Light \u0026amp; Heater DTCs:\u003c\/strong\u003e Triggers \u003cstrong\u003eP0135\u003c\/strong\u003e, \u003cstrong\u003eP0141\u003c\/strong\u003e, or \u003cstrong\u003eP0171\u003c\/strong\u003e when internal heater resistance spikes or signal voltage stalls.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eRough Idle \u0026amp; Fuel Odor:\u003c\/strong\u003e Slow air-fuel switching forces open-loop enrichment, causing hesitation and unburned exhaust odor.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFailed Emissions \u0026amp; Low MPG:\u003c\/strong\u003e Skewed feedback causes converter saturation, \u003cstrong\u003eP0420\u003c\/strong\u003e codes, and reduced fuel economy.\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eThe Direct-Fit Oxygen Sensors Solution\u003c\/h3\u003e\u003cp\u003eBuilt as a direct-fit replacement for OEM numbers \u003cstrong\u003e1588A144\u003c\/strong\u003e, \u003cstrong\u003e1588A228\u003c\/strong\u003e, \u003cstrong\u003e234-5051\u003c\/strong\u003e, and \u003cstrong\u003e234-4114\u003c\/strong\u003e, this matched two-sensor kit restores factory voltage switching across both positions. Each unit features a corrosion-resistant stainless steel shell, laser-welded seams, and a fast-response ceramic element engineered against thermal shock. Factory-style weatherpack connectors and OEM harness lengths bolt directly into stock bungs with zero cutting or splicing.\u003c\/p\u003e\u003ch3\u003eWhat's Included\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003e1 Upstream Oxygen 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;\"\u003e2011-2012 Mitsubishi Outlander Sport\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;\"\u003e4B11 2.0L MIVEC \/ GA2W\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; Substrate\u003c\/th\u003e\n\u003ctd style=\"padding:10px; border: 1px solid #e0e0e0;\"\u003eEPA Federal (46-State Legal, Excludes California) \/ Zirconia Ceramic Element\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;\"\u003e1588A228, 1588A144, 234-5051, 234-4114\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/table\u003e\u003c\/div\u003e\u003ch3\u003eCompatibility\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003e2011-2012 Mitsubishi Outlander Sport 2.0L (Excludes California Emissions; 2-sensor configuration)\u003c\/li\u003e\n\u003cli\u003eExcludes 2015-2018 2.4L applications, plus Lancer, Outlander, and RVR models\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eFrequently Asked Questions \u0026amp; Fitment Warnings\u003c\/h3\u003e\u003ch4\u003eDoes this fit the GA2W Outlander Sport?\u003c\/h4\u003e\u003cp\u003e\u003cstrong\u003eYes.\u003c\/strong\u003e This is a direct fit for the 2011-2012 Mitsubishi Outlander Sport equipped with the \u003cstrong\u003e4B11 2.0L\u003c\/strong\u003e engine. \u003cstrong\u003eExcludes California emissions vehicles, 2015-2018 2.4L applications, and Lancer, Outlander, or RVR models.\u003c\/strong\u003e\u003c\/p\u003e\u003ch4\u003eWill this clear P0135\/P0141 codes, and are both sensors included?\u003c\/h4\u003e\u003cp\u003e\u003cstrong\u003eYes.\u003c\/strong\u003e Replacing both upstream and downstream sensors clears \u003cstrong\u003eP0135\u003c\/strong\u003e, \u003cstrong\u003eP0141\u003c\/strong\u003e, and \u003cstrong\u003eP0134\u003c\/strong\u003e circuit faults caused by failed OEM units, assuming factory wiring and the catalytic converter are intact.\u003c\/p\u003e\u003ch4\u003eAre OEM-style connectors included for installation?\u003c\/h4\u003e\u003cp\u003e\u003cstrong\u003eYes.\u003c\/strong\u003e Both sensors include factory-style connectors for plug-and-play installation into stock exhaust bungs; confirm your vehicle uses the 2-sensor Federal emissions layout before ordering.\u003c\/p\u003e\u003ch3\u003eThe Mitsubishi Precision Standard\u003c\/h3\u003e\u003cp\u003eBuilt for JDM crossover reliability, replacing both sensors together restores crisp throttle response, balanced fuel trims, and emissions compliance without triggering check engine lights.\u003c\/p\u003e","brand":"VelocityMax","offers":[{"title":"Default Title","offer_id":68119408607480,"sku":"DS-EWFYWJRKN","price":59.95,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0800\/1290\/2648\/files\/o2-oxygen-sensor-upstream-downstream-for-mitsubishi-outlander-sport-2011-2012-2-0l-1.jpg?v=1794720645","url":"https:\/\/performancechiptuning.com\/products\/o2-oxygen-sensor-upstream-downstream-for-mitsubishi-outlander-sport-2011-2012-2-0l","provider":"Performance Chip Tuning","version":"1.0","type":"link"}