{"product_id":"o2-oxygen-sensor-upstream-downstream-for-dodge-nitro-2007-2012-3-7l","title":"O2 Oxygen Sensor Upstream Downstream for Dodge Nitro (2007-2012) 3.7L","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 2007-2012 Dodge Nitro (KA)\u003c\/h2\u003e\u003cp\u003e\u003cstrong\u003eWhat it Does:\u003c\/strong\u003e This 4-piece direct-fit oxygen sensor kit replaces both upstream and downstream O2 sensors on the 2007-2012 Dodge Nitro (\u003cstrong\u003eKA\u003c\/strong\u003e) equipped with the \u003cstrong\u003eEKG 3.7L V6\u003c\/strong\u003e engine to restore closed-loop air-fuel ratio feedback and catalytic converter monitoring.\u003c\/p\u003e\u003ch3\u003eThe Stock Dodge Nitro O2 Sensor Failure\u003c\/h3\u003e\u003cp\u003eOn the \u003cstrong\u003eKA\u003c\/strong\u003e Dodge Nitro equipped with the \u003cstrong\u003eEKG 3.7L PowerTech V6\u003c\/strong\u003e, factory exhaust sensors endure extreme thermal cycling, carbon soot accumulation, and internal heater circuit fatigue. Over time, contaminated zirconia elements develop slow voltage switching rates, while internal heater coils open up under exhaust vibration. Because the PCM relies on rapid millivolt transitions to trim fuel delivery, lazy or shorted factory sensors trigger \u003cstrong\u003eP0135\u003c\/strong\u003e, \u003cstrong\u003eP0155\u003c\/strong\u003e, \u003cstrong\u003eP0171\u003c\/strong\u003e, and \u003cstrong\u003eP0174\u003c\/strong\u003e fault codes while forcing rich open-loop operation.\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 Triggered heater circuit or slow-response codes such as \u003cstrong\u003eP0130\u003c\/strong\u003e, \u003cstrong\u003eP0135\u003c\/strong\u003e, \u003cstrong\u003eP0150\u003c\/strong\u003e, \u003cstrong\u003eP0155\u003c\/strong\u003e, or downstream catalyst efficiency faults like \u003cstrong\u003eP0420\u003c\/strong\u003e and \u003cstrong\u003eP0430\u003c\/strong\u003e.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eRich Exhaust \u0026amp; Fuel Economy Drop:\u003c\/strong\u003e Sluggish upstream switching causes the PCM to over-fuel, producing carbon-fouled spark plugs and black tailpipe soot.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eRough Idle \u0026amp; Hesitation:\u003c\/strong\u003e Skewed air-fuel trim feedback leads to unstable closed-loop idle, surging under light throttle, and failed emissions inspections.\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eThe Direct-Fit Matched Oxygen Sensor Solution\u003c\/h3\u003e\u003cp\u003eReplacing all four sensors simultaneously as a matched set prevents uneven bank-to-bank fuel trims and restores factory stoichiometric control on your \u003cstrong\u003eKA\u003c\/strong\u003e chassis. Each sensor utilizes a fast-light-off heated zirconia sensing element housed in corrosion-resistant stainless steel to withstand underbody moisture and exhaust heat soak. Pre-wired OEM-style connectors, direct-fit protective wire sleeves, and factory-spec thread geometry eliminate splicing and ensure accurate Bank 1 and Bank 2 PCM calibration right out of the box.\u003c\/p\u003e\u003ch3\u003eWhat's Included\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003e2 Upstream Oxygen Sensors\u003c\/li\u003e\n\u003cli\u003e2 Downstream Oxygen Sensors\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;\"\u003e2007-2012 Dodge Nitro\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;\"\u003eEKG 3.7L PowerTech V6 \/ KA\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; Sensing Element\u003c\/th\u003e\n\u003ctd style=\"padding:10px; border: 1px solid #e0e0e0;\"\u003eHeated Zirconia Ceramic \/ Matched Upstream \u0026amp; Downstream Set\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;\"\u003e234-4274\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/table\u003e\u003c\/div\u003e\u003ch3\u003eCompatibility\u003c\/h3\u003e\u003cul\u003e\u003cli\u003e2007-2012 Dodge Nitro — 3.7L (Confirm engine before ordering)\u003c\/li\u003e\u003c\/ul\u003e\u003ch3\u003eFrequently Asked Questions \u0026amp; Fitment Warnings\u003c\/h3\u003e\u003ch4\u003eDoes this fit the KA Nitro?\u003c\/h4\u003e\u003cp\u003e\u003cstrong\u003eYes.\u003c\/strong\u003e This is a direct fit for the 2007-2012 Dodge Nitro equipped with the \u003cstrong\u003eEKG 3.7L V6\u003c\/strong\u003e engine. \u003cstrong\u003eDoes not fit 4.0L V6 models or diesel variants; confirm your engine displacement before ordering.\u003c\/strong\u003e\u003c\/p\u003e\u003ch4\u003eWill this clear P0135, P0155, or P0420 codes?\u003c\/h4\u003e\u003cp\u003e\u003cstrong\u003eYes, when caused by degraded sensors.\u003c\/strong\u003e Replacing faulty upstream and downstream units resolves heater-circuit and slow-response codes like \u003cstrong\u003eP0135\u003c\/strong\u003e and \u003cstrong\u003eP0155\u003c\/strong\u003e, though persistent \u003cstrong\u003eP0420\u003c\/strong\u003e\/\u003cstrong\u003eP0430\u003c\/strong\u003e codes after replacement indicate a failing catalytic converter rather than a bad \u003cstrong\u003e234-4274\u003c\/strong\u003e sensor.\u003c\/p\u003e\u003ch4\u003eAre wiring harnesses and plugs ready for direct installation?\u003c\/h4\u003e\u003cp\u003e\u003cstrong\u003eYes.\u003c\/strong\u003e Each sensor includes direct-fit OEM-style connectors for plug-and-play installation into factory exhaust bungs—apply anti-seize sparingly only to the threads (avoiding the sensor tip) and torque to spec.\u003c\/p\u003e\u003ch3\u003eThe Dodge Heavy-Duty Standard\u003c\/h3\u003e\u003cp\u003eBuilt for the thermal demands of daily driving and towing on the \u003cstrong\u003eKA\u003c\/strong\u003e SUV platform, this 4-sensor kit restores accurate closed-loop fueling and long-term thermal durability. Maintain clean emissions compliance and consistent \u003cstrong\u003eEKG 3.7L\u003c\/strong\u003e fuel economy without cutting or splicing factory wiring.\u003c\/p\u003e","brand":"VelocityMax","offers":[{"title":"Default Title","offer_id":68115652870392,"sku":"DS-EQ2FJDFYF","price":67.95,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0800\/1290\/2648\/files\/o2-oxygen-sensor-upstream-downstream-for-dodge-nitro-2007-2012-3-7l-1.jpg?v=1794706748","url":"https:\/\/performancechiptuning.com\/products\/o2-oxygen-sensor-upstream-downstream-for-dodge-nitro-2007-2012-3-7l","provider":"Performance Chip Tuning","version":"1.0","type":"link"}