O2 Oxygen Sensor Upstream Downstream for Nissan Maxima (2016-2019) 3.5L

Precision-Calibrated Direct-Fit O2 Sensor Kit for 2016-2019 Nissan Maxima (A36)

What it Does: The O2 Oxygen Sensor Kit replaces worn upstream air-fuel ratio and downstream monitoring sensors on the 2016-2019 Maxima to restore precise closed-loop fueling control and clear check engine diagnostics.

The Stock Nissan Maxima Sensor Degradation

Extreme thermal cycling in the A36 engine bay combined with exhaust carbon contamination steadily degrades the factory zirconium ceramic elements on the VQ35DE platform. Over continuous heat-load cycles, factory sensors suffer response lag and soot fouling, causing the ECM to miscalculate stoichiometric air-fuel targets. This results in erratic short-term fuel trims, decreased throttle response, excessive tailpipe emissions, and persistent P0130-P0161 diagnostic trouble codes.

The Engineering Solution

Engineered for exact OEM matching, this 4-piece sensor set features dual-layer laser-welded stainless steel shielding to defend against particulate contamination and thermal shock. Integrated ceramic planar heating elements minimize cold-start latency, forcing closed-loop operation within seconds. Factory-pinned terminal connectors and precision M18x1.5 threading ensure plug-and-play fitment into factory exhaust bungs, restoring precise voltage reporting across all four exhaust monitoring banks without wire splicing.

What's Included

• 4 x Oxygen Sensors (Upstream and Downstream Positions)

Technical Specifications

Compatibility

• 2016-2019 Nissan Maxima (S, SV, SL, SR, Platinum) 3.5L V6

Frequently Asked Questions & Fitment Warnings

Does this fit the A36 Maxima?

Yes, this is a direct fit for the 2016-2019 Nissan Maxima equipped with the VQ35DE 3.5L V6 engine. Does not fit 4-cylinder Nissan Altima or Rogue models.

Do I need to clear ECM memory after installation?

Yes, clearing active diagnostic trouble codes and performing an ECM adaptive fuel trim reset using an OBD-II scan tool is required to synchronize closed-loop feedback immediately.

The Nissan VQ Caliber

Maintain the aggressive throttle delivery and high-RPM power delivery of your VQ35DE with precise closed-loop fueling management that protects downstream catalytic converters and preserves factory horsepower.