{"product_id":"o2-oxygen-sensor-upstream-downstream-for-kia-spectra-2004-2009-2-0l","title":"O2 Oxygen Sensor Upstream Downstream for Kia Spectra (2004-2009) 2.0L","description":"\u003ch2 style=\"font-size: clamp(18px, 3vw, 21px); margin-bottom: 15px; line-height: 1.3;\"\u003eDirect-Fit Upstream \u0026amp; Downstream O2 Sensor Kit for 2004-2009 Kia Spectra (LD)\u003c\/h2\u003e\u003cp\u003e\u003cstrong\u003eWhat it Does:\u003c\/strong\u003e This matched upstream and downstream O2 oxygen sensor kit restores closed-loop air-fuel ratio monitoring and catalyst efficiency tracking on the 2004-2009 Kia Spectra (\u003cstrong\u003eLD\u003c\/strong\u003e) with the \u003cstrong\u003eG4GC 2.0L Beta II\u003c\/strong\u003e engine.\u003c\/p\u003e\u003ch3\u003eThe Stock Kia Spectra Sensor Failure\u003c\/h3\u003e\u003cp\u003eFactory zirconia elements on the \u003cstrong\u003eLD\u003c\/strong\u003e chassis with the \u003cstrong\u003eG4GC 2.0L Beta II\u003c\/strong\u003e engine suffer from exhaust heat soak, silicone contamination, and heater circuit fatigue. Over high mileage, carbon buildup slows millivolt switching between rich and lean states, skewing PCM fuel trims. Internal heater burnout or cracked ceramic thimbles quickly trigger \u003cstrong\u003eP0133\u003c\/strong\u003e, \u003cstrong\u003eP0135\u003c\/strong\u003e, and \u003cstrong\u003eP0141\u003c\/strong\u003e check engine 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 Triggers \u003cstrong\u003eP0130\u003c\/strong\u003e, \u003cstrong\u003eP0133\u003c\/strong\u003e, \u003cstrong\u003eP0135\u003c\/strong\u003e, or \u003cstrong\u003eP0141\u003c\/strong\u003e heater codes, plus false \u003cstrong\u003eP0420\u003c\/strong\u003e catalyst alerts.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSluggish Voltage Switching:\u003c\/strong\u003e Lazy upstream response forces rich open-loop fueling, fouling plugs and overheating the catalyst.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDrivability \u0026amp; Emissions:\u003c\/strong\u003e Causes rough idle, poor fuel economy, and failed state emissions inspections.\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eThe Direct-Fit Zirconia O2 Sensor Solution\u003c\/h3\u003e\u003cp\u003eThis matched kit replaces worn factory probes with direct-fit heated zirconia sensors calibrated to OEM electrical resistance and voltage response curves. Stainless steel housings, laser-welded internal seams, and pre-coated anti-seize threads ensure a leak-free exhaust bung seal. Factory-style plug-and-play harnesses interchange directly with \u003cstrong\u003eSG1495\u003c\/strong\u003e, \u003cstrong\u003e234-5430\u003c\/strong\u003e, \u003cstrong\u003eSG1485\u003c\/strong\u003e, and \u003cstrong\u003eSG1695\u003c\/strong\u003e without 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;\"\u003e2004-2009 Kia Spectra\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;\"\u003eG4GC 2.0L Beta II \/ LD\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;\"\u003eSensing Architecture\u003c\/th\u003e\n\u003ctd style=\"padding:10px; border: 1px solid #e0e0e0;\"\u003eHeated Zirconia \/ Upstream \u0026amp; Downstream (4-Wire)\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;\"\u003eSG1495, 234-5430, 24304, SG1485, 2133902, 15646, SG1695, TB3013503+120447\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/table\u003e\u003c\/div\u003e\u003ch3\u003eCompatibility\u003c\/h3\u003e\u003cul\u003e\u003cli\u003e2004-2009 Kia Spectra 2.0L (\u003cstrong\u003eLD\u003c\/strong\u003e Chassis \/ \u003cstrong\u003eG4GC\u003c\/strong\u003e Engine)\u003c\/li\u003e\u003c\/ul\u003e\u003ch3\u003eFrequently Asked Questions \u0026amp; Fitment Warnings\u003c\/h3\u003e\u003ch4\u003eDoes this fit the LD Spectra?\u003c\/h4\u003e\u003cp\u003e\u003cstrong\u003eYes.\u003c\/strong\u003e Fits 2004-2009 Kia Spectra models with the \u003cstrong\u003eG4GC 2.0L Beta II\u003c\/strong\u003e engine. \u003cstrong\u003eExcludes 2004 1.8L Spectra models—confirm engine displacement before ordering.\u003c\/strong\u003e\u003c\/p\u003e\u003ch4\u003eWill this clear P0135\/P0141 codes and restore fuel economy?\u003c\/h4\u003e\u003cp\u003e\u003cstrong\u003eYes, when worn sensors are the cause.\u003c\/strong\u003e Replacing both probes restores heater resistance and closed-loop switching, clearing \u003cstrong\u003eP0133\u003c\/strong\u003e, \u003cstrong\u003eP0135\u003c\/strong\u003e, and \u003cstrong\u003eP0141\u003c\/strong\u003e codes.\u003c\/p\u003e\u003ch4\u003eAre factory plugs included for bolt-on installation?\u003c\/h4\u003e\u003cp\u003e\u003cstrong\u003eYes.\u003c\/strong\u003e Both probes include OEM-style plugs matching \u003cstrong\u003e234-5430\u003c\/strong\u003e and \u003cstrong\u003e2133902\u003c\/strong\u003e; torque into clean bungs to 30–35 lb-ft.\u003c\/p\u003e\u003ch3\u003eThe Kia Emissions Precision Standard\u003c\/h3\u003e\u003cp\u003eAccurate oxygen feedback keeps your daily driver running at peak efficiency while protecting the catalytic converter. This matched sensor pair delivers reliable fuel control and CEL-free operation.\u003c\/p\u003e","brand":"VelocityMax","offers":[{"title":"Default Title","offer_id":68114758009080,"sku":"DS-EAJSMZ1MN","price":69.95,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0800\/1290\/2648\/files\/o2-oxygen-sensor-upstream-downstream-for-kia-spectra-2004-2009-2-0l-1.jpg?v=1794698775","url":"https:\/\/performancechiptuning.com\/products\/o2-oxygen-sensor-upstream-downstream-for-kia-spectra-2004-2009-2-0l","provider":"Performance Chip Tuning","version":"1.0","type":"link"}