{"product_id":"o2-oxygen-sensor-upstream-downstream-for-hyundai-tucson-2010-2015-2-0l-2-4l","title":"O2 Oxygen Sensor Upstream Downstream for Hyundai Tucson (2010-2015) 2.0L 2.4L","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 2010-2015 Hyundai Tucson (LM)\u003c\/h2\u003e\u003cp\u003e\u003cstrong\u003eWhat it Does:\u003c\/strong\u003e This matched upstream and downstream oxygen sensor kit monitors pre- and post-catalyst exhaust gas oxygen levels on the \u003cstrong\u003eLM\u003c\/strong\u003e chassis 2010-2015 Hyundai Tucson \u003cstrong\u003e2.0L\u003c\/strong\u003e and \u003cstrong\u003e2.4L\u003c\/strong\u003e engines to regulate closed-loop air-fuel ratios and verify catalytic converter efficiency.\u003c\/p\u003e\u003ch3\u003eThe Stock Hyundai Tucson Oxygen Sensor Failure\u003c\/h3\u003e\u003cp\u003eFactory oxygen sensors on the \u003cstrong\u003eLM\u003c\/strong\u003e Tucson equipped with the \u003cstrong\u003eTheta II G4KD \/ G4KE\u003c\/strong\u003e or \u003cstrong\u003eNu G4NC\u003c\/strong\u003e four-cylinder engines endure extreme exhaust thermal cycles exceeding 1,400°F. Over time, oil ash, fuel additives, and moisture contaminate the porous ceramic zirconia element, causing sluggish voltage switching and internal heater circuit burnout. Carbon fouling delays closed-loop fuel trim response, skewing ECU injector pulse-width calculations and frequently triggering \u003cstrong\u003eP0133\u003c\/strong\u003e, \u003cstrong\u003eP0135\u003c\/strong\u003e, and \u003cstrong\u003eP0141\u003c\/strong\u003e fault 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 \/ Heater \u0026amp; Response DTCs:\u003c\/strong\u003e Faults such as \u003cstrong\u003eP0133\u003c\/strong\u003e (slow response), \u003cstrong\u003eP0135\u003c\/strong\u003e (upstream heater circuit), or \u003cstrong\u003eP0141\u003c\/strong\u003e (downstream heater circuit) trigger when internal resistance spikes or sensor switching lags.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFuel Trim Drift \u0026amp; Rough Idle:\u003c\/strong\u003e Sluggish upstream feedback forces inaccurate fuel trim compensation, causing hesitation under load, sulfur exhaust odor, and \u003cstrong\u003eP0171\u003c\/strong\u003e or \u003cstrong\u003eP0172\u003c\/strong\u003e codes.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eIncreased Fuel Consumption \u0026amp; Emissions Failure:\u003c\/strong\u003e Prolonged open-loop fueling wastes fuel, overheats the catalytic substrate, and prevents OBD-II readiness monitors from setting.\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eThe Direct-Fit Dual-Sensor Oxygen Sensor Solution\u003c\/h3\u003e\u003cp\u003eReplacing both units as a matched pair restores synchronized pre- and post-catalyst signal feedback across the \u003cstrong\u003eLM\u003c\/strong\u003e exhaust manifold and mid-pipe. Each direct-fit sensor utilizes a stainless steel protective shield, high-temperature ceramic sensing element, and factory-calibrated internal heater coil for rapid cold-start light-off. Pre-terminated OEM-style weatherproof connectors and exact-length harness leads eliminate wire splicing, directly replacing interchange numbers \u003cstrong\u003e234-5029\u003c\/strong\u003e and \u003cstrong\u003e234-4238\u003c\/strong\u003e with factory thread pitch and sealing geometry.\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;\"\u003e2010-2015 Hyundai Tucson\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;\"\u003e2.0L \u0026amp; 2.4L (G4KD \/ G4KE \/ G4NC) \/ LM\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 Configuration\u003c\/th\u003e\n\u003ctd style=\"padding:10px; border: 1px solid #e0e0e0;\"\u003eUpstream (Pre-Cat) \u0026amp; Downstream (Post-Cat) Heated Zirconia\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;\"\u003e234-5029, 234-4238\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/table\u003e\u003c\/div\u003e\u003ch3\u003eCompatibility\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003e2010-2013 Hyundai Tucson 2.4L (California Emissions)\u003c\/li\u003e\n\u003cli\u003e2014-2015 Hyundai Tucson 2.4L\u003c\/li\u003e\n\u003cli\u003e2011-2013 Hyundai Tucson 2.0L (Automatic Transmission, California Emissions)\u003c\/li\u003e\n\u003cli\u003e2014 Hyundai Tucson 2.0L\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eFrequently Asked Questions \u0026amp; Fitment Warnings\u003c\/h3\u003e\u003ch4\u003eDoes this fit the LM Tucson?\u003c\/h4\u003e\u003cp\u003e\u003cstrong\u003eYes.\u003c\/strong\u003e This is a direct fit for the 2010-2015 Hyundai Tucson equipped with the \u003cstrong\u003e2.0L\u003c\/strong\u003e or \u003cstrong\u003e2.4L (G4KD \/ G4KE \/ G4NC)\u003c\/strong\u003e engine. \u003cstrong\u003eConfirm engine, transmission, and emissions spec before ordering: 2010-2013 2.4L models require California emissions, 2011-2013 2.0L models require automatic transmission with California emissions, and 2015 2.0L, Santa Fe, Sonata, and Kia applications are excluded.\u003c\/strong\u003e\u003c\/p\u003e\u003ch4\u003eWill this kit clear P0135, P0141, or P0420 codes?\u003c\/h4\u003e\u003cp\u003e\u003cstrong\u003eYes for sensor faults; conditional for P0420.\u003c\/strong\u003e Installing fresh sensors directly resolves slow-response and heater circuit codes such as \u003cstrong\u003eP0133\u003c\/strong\u003e, \u003cstrong\u003eP0135\u003c\/strong\u003e, and \u003cstrong\u003eP0141\u003c\/strong\u003e, while a \u003cstrong\u003eP0420\u003c\/strong\u003e code will only clear if the downstream sensor was falsely reporting catalyst inefficiency rather than a damaged catalytic converter core.\u003c\/p\u003e\u003ch4\u003eIs any wiring modification required during installation?\u003c\/h4\u003e\u003cp\u003e\u003cstrong\u003eNo wiring modification is required.\u003c\/strong\u003e Both sensors arrive with OEM-style plug-and-play connectors replacing \u003cstrong\u003e234-5029\u003c\/strong\u003e and \u003cstrong\u003e234-4238\u003c\/strong\u003e; thread into the factory exhaust bungs using a 22mm O2 sensor socket and apply anti-seize only to the threads while keeping the sensing tip clean.\u003c\/p\u003e\u003ch3\u003eThe Hyundai Precision Standard\u003c\/h3\u003e\u003cp\u003eAccurate closed-loop air-fuel monitoring is essential for protecting the catalytic converter and maintaining strict emissions compliance on your \u003cstrong\u003eLM\u003c\/strong\u003e Hyundai Tucson. Replacing worn upstream and downstream sensors as a matched pair restores stable ECU fuel trim control and reliable, CEL-free operation.\u003c\/p\u003e","brand":"VelocityMax","offers":[{"title":"Default Title","offer_id":68119223042296,"sku":"DS-EB4YH2GCL","price":87.95,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0800\/1290\/2648\/files\/o2-oxygen-sensor-upstream-downstream-for-hyundai-tucson-2010-2015-2-0l-2-4l-1.jpg?v=1794716735","url":"https:\/\/performancechiptuning.com\/products\/o2-oxygen-sensor-upstream-downstream-for-hyundai-tucson-2010-2015-2-0l-2-4l","provider":"Performance Chip Tuning","version":"1.0","type":"link"}