{"product_id":"o2-oxygen-sensor-upstream-downstream-for-jeep-wrangler-2007-2011-3-8l","title":"O2 Oxygen Sensor Upstream Downstream for Jeep Wrangler (2007-2011) 3.8L","description":"\u003ch2 style=\"font-size: clamp(18px, 3vw, 21px); margin-bottom: 15px; line-height: 1.3;\"\u003eDirect-Fit O2 Oxygen Sensor Set for 2007-2011 Jeep Wrangler (JK)\u003c\/h2\u003e\n\n\u003cp\u003e\u003cstrong\u003eWhat it Does:\u003c\/strong\u003e The Direct-Fit O2 Oxygen Sensor Set replaces all four factory exhaust sensors on the 2007-2011 Wrangler to restore factory fuel trims, improve idle stability, and eliminate catalytic diagnostic trouble codes.\u003c\/p\u003e\n\n\u003ch3\u003eThe Stock Jeep Wrangler Sensor Degradation\u003c\/h3\u003e\n\u003cp\u003eOver sustained mileage, factory oxygen sensors on the \u003cstrong\u003eJeep Wrangler JK\u003c\/strong\u003e equipped with the \u003cstrong\u003e3.8L EGH V6\u003c\/strong\u003e degrade from severe thermal cycling, silica poisoning, and oil vapor contamination. As the internal zirconia element ages, its response voltage slows down, leading to lazy switching speeds between rich and lean air-fuel ratios. This latency causes the powertrain control module (PCM) to miscalculate injector pulse widths, resulting in rough idle, elevated fuel consumption, hesitations under load, and emissions failure marked by fault codes such as \u003cstrong\u003eP0130\u003c\/strong\u003e, \u003cstrong\u003eP0161\u003c\/strong\u003e, \u003cstrong\u003eP0420\u003c\/strong\u003e, and \u003cstrong\u003eP0430\u003c\/strong\u003e.\u003c\/p\u003e\n\n\u003ch3\u003eThe Engineering Solution\u003c\/h3\u003e\n\u003cp\u003eThis comprehensive set provides two upstream wide-band\/narrow-band air-fuel ratio monitors and two downstream catalyst monitors engineered to match factory voltage curves. Constructed with high-grade stainless steel housings, dual-layer protective internal shields, and precision ceramic sensor elements, each sensor resists soot contamination and high exhaust gas temperatures. Factory-terminated weather-pack connectors and pre-measured harnesses ensure zero-splicing installation into original harness clips, restoring instantaneous closed-loop ECM adjustments for stable combustion efficiency.\u003c\/p\u003e\n\n\u003ch3\u003eWhat's Included\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003e2x Upstream Oxygen Sensors (Pre-Catalytic Converter)\u003c\/li\u003e\n  \u003cli\u003e2x Downstream Oxygen Sensors (Post-Catalytic Converter)\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eTechnical Specifications\u003c\/h3\u003e\n\u003cdiv style=\"overflow-x: auto; margin-bottom: 20px;\"\u003e\n  \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;\"\u003e2007-2011 Jeep Wrangler\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;\"\u003e3.8L EGH V6 \/ JK\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;\"\u003eStock Output\u003c\/th\u003e\n\u003ctd style=\"padding:10px; border: 1px solid #e0e0e0;\"\u003e202 hp \/ 237 lb-ft\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\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;\"\u003e234-4030, 234-4588, 234-4593, 234-4594, 234-4598, 234-4653, 234-4749, 234-4217, 234-4228, 234-4229, 234-4232, 234-4587\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003c\/table\u003e\n\u003c\/div\u003e\n\n\u003ch3\u003eCompatibility\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003e2007-2011 Jeep Wrangler (JK) 3.8L V6 (Sport, Sahara, Rubicon, Unlimited)\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eFrequently Asked Questions \u0026amp; Fitment Warnings\u003c\/h3\u003e\n\u003ch4\u003eDoes this fit the JK Wrangler?\u003c\/h4\u003e\n\u003cp\u003eYes, this is a direct fit for the 2007-2011 Jeep Wrangler equipped with the \u003cstrong\u003e3.8L EGH V6\u003c\/strong\u003e engine.\u003c\/p\u003e\n\n\u003ch4\u003eDo I need to reset the ECM after installation?\u003c\/h4\u003e\n\u003cp\u003eYes, clearing all diagnostic trouble codes with an OBD-II scanner is required to reset short- and long-term fuel trim memory to recalibrate to the new sensors.\u003c\/p\u003e\n\n\u003ch3\u003eThe Jeep Off-Road Standard\u003c\/h3\u003e\n\u003cp\u003eTrail navigation and technical rock crawling demand dependable low-end torque delivery and precise throttle modulation. Replacing worn oxygen sensors as a complete set guarantees the fueling accuracy your JK needs during steep inclines, heavy loads, and sustained off-road operation.\u003c\/p\u003e","brand":"VelocityMax","offers":[{"title":"Default Title","offer_id":67907763929336,"sku":"DS-EI652H2VO","price":98.95,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0800\/1290\/2648\/files\/o2-oxygen-sensor-upstream-downstream-for-jeep-wrangler-2007-2011-3-8l-1.jpg?v=1793379851","url":"https:\/\/performancechiptuning.com\/de\/products\/o2-oxygen-sensor-upstream-downstream-for-jeep-wrangler-2007-2011-3-8l","provider":"Performance Chip Tuning","version":"1.0","type":"link"}