{"product_id":"o2-oxygen-sensor-upstream-downstream-for-lincoln-mkz-2013-2020-2-0l-hybrid","title":"O2 Oxygen Sensor Upstream Downstream for Lincoln MKZ (2013-2020) 2.0L Hybrid","description":"\u003ch2 style=\"font-size: clamp(18px, 3vw, 21px); margin-bottom: 15px; line-height: 1.3;\"\u003eDirect-Fit Oxygen Sensor Kit for 2013-2020 Lincoln MKZ (CD533)\u003c\/h2\u003e\u003cp\u003e\u003cstrong\u003eWhat it Does:\u003c\/strong\u003e This upstream and downstream oxygen sensor kit restores closed-loop air-fuel metering and catalyst monitoring on the 2013-2020 Lincoln MKZ \u003cstrong\u003eCD533\u003c\/strong\u003e \u003cstrong\u003e2.0L Atkinson-Cycle I4\u003c\/strong\u003e Hybrid.\u003c\/p\u003e\u003ch3\u003eThe Stock Lincoln MKZ Sensor Failure\u003c\/h3\u003e\u003cp\u003eOn the \u003cstrong\u003eCD533\u003c\/strong\u003e equipped with the \u003cstrong\u003e2.0L Atkinson-Cycle I4\u003c\/strong\u003e hybrid powertrain, frequent engine start-stop thermal cycling accelerates sensor wear. Exhaust soot, moisture condensation, and thermal shock fracture the zirconia element or burn out the internal heater circuit. This degrades upstream lambda response and downstream switching accuracy, triggering \u003cstrong\u003eP0135\u003c\/strong\u003e, \u003cstrong\u003eP0141\u003c\/strong\u003e, or \u003cstrong\u003eP0420\u003c\/strong\u003e fault codes and forcing open-loop fuel enrichment.\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 Stored codes like \u003cstrong\u003eP0135\u003c\/strong\u003e, \u003cstrong\u003eP0141\u003c\/strong\u003e, or \u003cstrong\u003eP0133\u003c\/strong\u003e from heater burnout or sluggish response.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eReduced MPG:\u003c\/strong\u003e Inaccurate upstream feedback forces rich open-loop fueling.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eEmissions Failure:\u003c\/strong\u003e Faulty downstream readings prevent catalyst readiness monitor completion.\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eThe Direct-Fit Oxygen Sensor Solution\u003c\/h3\u003e\u003cp\u003eReplacing both sensors as a matched pair restores synchronized air-fuel metering and catalyst monitoring on the \u003cstrong\u003e2.0L Atkinson-Cycle I4\u003c\/strong\u003e. Each sensor uses a laser-welded stainless steel housing, fast-lightoff heater, and \u003cstrong\u003ezirconia ceramic\u003c\/strong\u003e element built to match OEM \u003cstrong\u003e234-5068\u003c\/strong\u003e and \u003cstrong\u003e234-4578\u003c\/strong\u003e electrical resistance specs. Factory-length harnesses and weather-sealed OEM connectors ensure reliable PCM communication without cutting, splicing, or exhaust bung modifications.\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;\"\u003e2013-2020 Lincoln MKZ\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 Atkinson-Cycle I4 \/ CD533\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; Substrate\u003c\/th\u003e\n\u003ctd style=\"padding:10px; border: 1px solid #e0e0e0;\"\u003eClosed-Loop Emissions \/ Zirconia Ceramic\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\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;\"\u003e234-5068, 234-4578\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/table\u003e\u003c\/div\u003e\u003ch3\u003eCompatibility\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003e2013-2020 Lincoln MKZ 2.0L Hybrid (ELECTRIC\/GAS) — Uses 2 sensors\u003c\/li\u003e\n\u003cli\u003eDoes not fit 2.0L EcoBoost MKZ models\u003c\/li\u003e\n\u003cli\u003eFord C-Max 2.0L Hybrid (separate row sharing listing; confirm engine before ordering)\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eFrequently Asked Questions \u0026amp; Fitment Warnings\u003c\/h3\u003e\u003ch4\u003eDoes this fit the CD533 MKZ?\u003c\/h4\u003e\u003cp\u003e\u003cstrong\u003eYes.\u003c\/strong\u003e Fits 2013-2020 Lincoln MKZ \u003cstrong\u003eCD533\u003c\/strong\u003e \u003cstrong\u003e2.0L Atkinson-Cycle I4\u003c\/strong\u003e Hybrid (ELECTRIC\/GAS) models. \u003cstrong\u003eDoes not fit 2.0L EcoBoost MKZ models.\u003c\/strong\u003e\u003c\/p\u003e\u003ch4\u003eWill this clear P0135, P0141, or P0420 codes?\u003c\/h4\u003e\u003cp\u003e\u003cstrong\u003eYes, for sensor faults.\u003c\/strong\u003e Replacing both sensors resolves \u003cstrong\u003eP0135\u003c\/strong\u003e and \u003cstrong\u003eP0141\u003c\/strong\u003e heater\/response codes; persistent \u003cstrong\u003eP0420\u003c\/strong\u003e indicates catalytic converter wear.\u003c\/p\u003e\u003ch4\u003eAre factory connectors included for installation?\u003c\/h4\u003e\u003cp\u003e\u003cstrong\u003eYes.\u003c\/strong\u003e Direct-fit OEM connectors and pre-threaded housings install into factory bungs without splicing.\u003c\/p\u003e\u003ch3\u003eThe Lincoln Precision Standard\u003c\/h3\u003e\u003cp\u003eEngineered for hybrid emissions precision, these direct-fit sensors maintain exact air-fuel stoichiometry during start-stop transitions. Restore readiness monitors and CEL-free operation.\u003c\/p\u003e","brand":"VelocityMax","offers":[{"title":"Default Title","offer_id":68119241752824,"sku":"DS-EF68YMNIZ","price":65.95,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0800\/1290\/2648\/files\/o2-oxygen-sensor-upstream-downstream-for-lincoln-mkz-2013-2020-2-0l-hybrid-1.jpg?v=1794717828","url":"https:\/\/performancechiptuning.com\/products\/o2-oxygen-sensor-upstream-downstream-for-lincoln-mkz-2013-2020-2-0l-hybrid","provider":"Performance Chip Tuning","version":"1.0","type":"link"}