{"product_id":"oxygen-sensors-for-nissan-maxima-2000-2001-3-0l-upstream","title":"Oxygen Sensors for Nissan Maxima (2000-2001) 3.0L Upstream","description":"\u003ch2\u003eDirect-Fit Upstream Oxygen Sensor for 2000-2001 Nissan Maxima\u003c\/h2\u003e\n\n\u003cp\u003e\u003cstrong\u003eWhat it Does:\u003c\/strong\u003e The upstream oxygen sensor replaces contaminated factory pre-catalytic sensors on the 2000-2001 Maxima to restore precise closed-loop air-fuel feedback, smooth idle quality, and lower tailpipe emissions.\u003c\/p\u003e\n\n\u003ch3\u003eThe Stock Nissan Maxima Lambda Drift and Element Degradation\u003c\/h3\u003e\n\u003cp\u003eOn the \u003cstrong\u003eA33\u003c\/strong\u003e chassis Maxima, factory zirconia ceramic sensor elements are constantly subjected to severe thermal cycling and exhaust deposits. Over time, the pre-cat sensor slows in its stoichiometric switching response, falling well below the required sub-100 millisecond threshold. This degraded switching speed causes false lean or rich signals to the ECM, skewing long-term fuel trims (LTFT), inducing carbon buildup, eroding fuel economy, and triggering persistent Diagnostic Trouble Codes such as P0130 through P0135 on the \u003cstrong\u003eVQ30DE\u003c\/strong\u003e engine.\u003c\/p\u003e\n\n\u003ch3\u003eThe Engineering Solution\u003c\/h3\u003e\n\u003cp\u003eThis direct-fit replacement sensor is built with a high-grade planar ceramic element encased in a dual 304 stainless steel protective shell to guard against thermal shock and exhaust debris. Featuring an integrated fast-acting ceramic heater, the unit quickly achieves its optimal 600°F operating temperature to shorten open-loop cold-start fueling cycles. Precision-rolled M18x1.5 threads, high-temperature wire insulation, and an OEM-matched terminal connector ensure rapid signal transmission without signal noise or wire splicing.\u003c\/p\u003e\n\n\u003ch3\u003eTechnical Specifications\u003c\/h3\u003e\n\u003ctable width=\"100%\" style=\"border-collapse: collapse; border: 1px solid #e0e0e0; font-size: 14px; margin-bottom: 20px;\"\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;\"\u003e2000-2001 Nissan Maxima (Upstream)\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;\"\u003e\n\u003cstrong\u003eVQ30DE\u003c\/strong\u003e \/ \u003cstrong\u003eA33\u003c\/strong\u003e\n\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;\"\u003e222 hp \/ 217 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;\"\u003eN\/A\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/table\u003e\n\n\u003ch3\u003eCompatibility\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003e2000-2001 Nissan Maxima GXE 3.0L V6 (VQ30DE)\u003c\/li\u003e\n  \u003cli\u003e2000-2001 Nissan Maxima GLE 3.0L V6 (VQ30DE)\u003c\/li\u003e\n  \u003cli\u003e2000-2001 Nissan Maxima SE 3.0L V6 (VQ30DE)\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eFrequently Asked Questions\u003c\/h3\u003e\n\u003cp\u003e\u003cstrong\u003eDoes this fit the A33 Maxima?\u003c\/strong\u003e\u003cbr\u003e Yes, this is a direct fit for the 2000-2001 Nissan Maxima equipped with the \u003cstrong\u003eVQ30DE\u003c\/strong\u003e 3.0L V6 engine in the upstream position.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eWill replacing this sensor resolve P0130 and P0135 trouble codes?\u003c\/strong\u003e\u003cbr\u003e Yes, installing a fresh upstream sensor clears sensor-circuit and heater-circuit fault codes once fuel trim adaptations relearn.\u003c\/p\u003e\n\n\u003ch3\u003eThe Nissan VQ Caliber\u003c\/h3\u003e\n\u003cp\u003eThe legendary \u003cstrong\u003eVQ30DE\u003c\/strong\u003e powerplant relies on precise air-fuel metering to maintain its signature linear power delivery and smooth rev characteristics. Restoring factory stoichiometric sensing preserves your \u003cstrong\u003eA33\u003c\/strong\u003e Maxima's throttle response, engine efficiency, and exhaust catalyst lifespan.\u003c\/p\u003e","brand":"VelocityMax","offers":[{"title":"Default Title","offer_id":50511723004152,"sku":"DS-E5CD88PD8","price":64.95,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0800\/1290\/2648\/files\/oxygen-sensors-for-nissan-maxima-2000-2001-3-0l-upstream-1.jpg?v=1789418539","url":"https:\/\/performancechiptuning.com\/products\/oxygen-sensors-for-nissan-maxima-2000-2001-3-0l-upstream","provider":"Performance Chip Tuning","version":"1.0","type":"link"}