{"product_id":"o2-oxygen-sensor-upstream-downstream-for-gmc-canyon-2007-2012-3-7l","title":"O2 Oxygen Sensor Upstream Downstream for GMC Canyon (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 Oxygen Sensor Kit for 2007-2012 GMC Canyon (GMT355)\u003c\/h2\u003e\u003cp\u003e\u003cstrong\u003eWhat it Does:\u003c\/strong\u003e This matched O2 sensor kit monitors upstream and downstream exhaust oxygen on the \u003cstrong\u003eGMT355\u003c\/strong\u003e 2007-2012 GMC Canyon (\u003cstrong\u003eLLR 3.7L\u003c\/strong\u003e) to regulate closed-loop fuel trims and catalyst efficiency.\u003c\/p\u003e\u003ch3\u003eThe Stock GMC Canyon Oxygen Sensor Failure\u003c\/h3\u003e\u003cp\u003eFactory heated O2 sensors on the \u003cstrong\u003eGMT355\u003c\/strong\u003e platform equipped with the \u003cstrong\u003eLLR 3.7L\u003c\/strong\u003e engine routinely suffer thermal fatigue, internal heater circuit burnout, and zirconia element contamination from oil ash or carbon buildup. As the upstream sensing element slows, fuel trims drift excessively rich or lean, overloading the catalytic converter. Simultaneously, degraded downstream sensors fail to stabilize voltage readings, triggering persistent \u003cstrong\u003eP0135\u003c\/strong\u003e, \u003cstrong\u003eP0141\u003c\/strong\u003e, \u003cstrong\u003eP0171\u003c\/strong\u003e, and \u003cstrong\u003eP0420\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 \u0026amp; DTCs:\u003c\/strong\u003e Triggers heater circuit codes like \u003cstrong\u003eP0135\u003c\/strong\u003e or \u003cstrong\u003eP0141\u003c\/strong\u003e, slow response \u003cstrong\u003eP0133\u003c\/strong\u003e, or catalyst efficiency \u003cstrong\u003eP0420\u003c\/strong\u003e.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSluggish Throttle \u0026amp; Rough Running:\u003c\/strong\u003e Erratic voltage forces open-loop fueling, causing exhaust soot and hesitation under load.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFailed Emissions \u0026amp; Low MPG:\u003c\/strong\u003e Uncalibrated air-fuel ratios drop fuel economy and block OBD-II readiness monitors.\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eThe Direct-Fit Upstream \u0026amp; Downstream O2 Sensor Solution\u003c\/h3\u003e\u003cp\u003eThis matched direct-fit O2 sensor pair restores factory closed-loop lambda feedback across both Bank 1 Sensor 1 and Bank 1 Sensor 2 positions on your \u003cstrong\u003eGMT355\u003c\/strong\u003e Canyon. Built with fast-acting ceramic elements, laser-welded \u003cstrong\u003estainless steel\u003c\/strong\u003e housings, and factory-spec weather-sealed connectors, each unit resists thermal shock and moisture ingress. Replacing upstream and downstream sensors together eliminates response lag and bolts directly into factory bungs without splicing.\u003c\/p\u003e\u003ch3\u003eWhat's Included\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003e1x Upstream Oxygen Sensor\u003c\/li\u003e\n\u003cli\u003e1x 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;\"\u003e2007-2012 GMC Canyon\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;\"\u003eLLR 3.7L I5 \/ GMT355\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 Architecture\u003c\/th\u003e\n\u003ctd style=\"padding:10px; border: 1px solid #e0e0e0;\"\u003eDirect-Fit Heated Zirconia \/ Upstream \u0026amp; Downstream\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\u003c\/table\u003e\u003c\/div\u003e\u003ch3\u003eCompatibility\u003c\/h3\u003e\u003cul\u003e\u003cli\u003e2007-2012 GMC Canyon (3.7L LLR Engine Only)\u003c\/li\u003e\u003c\/ul\u003e\u003ch3\u003eFrequently Asked Questions \u0026amp; Fitment Warnings\u003c\/h3\u003e\u003ch4\u003eDoes this fit the GMT355 Canyon?\u003c\/h4\u003e\u003cp\u003e\u003cstrong\u003eYes.\u003c\/strong\u003e Fits 2007-2012 GMC Canyon with the \u003cstrong\u003eLLR 3.7L\u003c\/strong\u003e engine. \u003cstrong\u003eExcludes 2.9L Canyon and Chevrolet Colorado models; confirm engine before ordering.\u003c\/strong\u003e\u003c\/p\u003e\u003ch4\u003eWill this clear P0135, P0141, and P0420 codes?\u003c\/h4\u003e\u003cp\u003e\u003cstrong\u003eYes, if sensors are faulty.\u003c\/strong\u003e Restores heater resistance and switching speed to clear \u003cstrong\u003eP0135\u003c\/strong\u003e\/\u003cstrong\u003eP0141\u003c\/strong\u003e; a persistent \u003cstrong\u003eP0420\u003c\/strong\u003e indicates a worn catalyst.\u003c\/p\u003e\u003ch4\u003eAre connectors direct-fit for installation?\u003c\/h4\u003e\u003cp\u003e\u003cstrong\u003eYes, no splicing is required.\u003c\/strong\u003e Both sensors use OEM-style connectors and fit factory exhaust bungs using a 22mm O2 sensor socket.\u003c\/p\u003e\u003ch3\u003eThe GMC Heavy-Duty Standard\u003c\/h3\u003e\u003cp\u003eBuilt for high exhaust heat and vibration on the \u003cstrong\u003eGMT355\u003c\/strong\u003e Canyon, keeping your \u003cstrong\u003eLLR 3.7L\u003c\/strong\u003e running clean and CEL-free.\u003c\/p\u003e","brand":"VelocityMax","offers":[{"title":"Default Title","offer_id":68116137640184,"sku":"DS-EV7EDGCUH","price":35.95,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0800\/1290\/2648\/files\/o2-oxygen-sensor-upstream-downstream-for-gmc-canyon-2007-2012-3-7l-1.jpg?v=1794710870","url":"https:\/\/performancechiptuning.com\/products\/o2-oxygen-sensor-upstream-downstream-for-gmc-canyon-2007-2012-3-7l","provider":"Performance Chip Tuning","version":"1.0","type":"link"}