O2 Oxygen Sensor Upstream Downstream for Nissan Armada (2017-2019) 5.6L
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Direct-Fit Oxygen Sensor Kit for 2017-2019 Nissan Armada (Y62)
What it Does: The oxygen sensor kit monitors pre- and post-catalytic exhaust gas composition on the 2017-2019 Armada to restore optimal closed-loop air-fuel management, clear diagnostic trouble codes, and maximize fuel efficiency.
The Stock Nissan Armada Sensor Contamination and Heater Failure
Under repeated thermal cycling and prolonged operation, factory oxygen sensors on the VK56VD 5.6L V8 suffer from zirconia element degradation, carbon fouling, and internal heater circuit failure. As the factory upstream wideband and downstream narrowband sensors drift out of calibration, the ECM receives sluggish voltage feedback. This false lean or rich condition forces unoptimized fuel trims, leading to raw fuel entering the exhaust, spark plug fouling, sluggish throttle response, and persistent P0130-P0161 check engine codes.
The Engineering Solution
Engineered for direct-fit plug-and-play installation, this 4-piece sensor set replaces OEM references 22693-1PM0A and 226A0-BV81A. Built with double-layered 304 stainless steel heat shields and high-grade planar ceramic sensing elements, these sensors resist thermal shock and silicon wash. Fast-acting integrated internal ceramic heaters bring the sensors up to operating temperature in seconds, ensuring accurate closed-loop stoichiometry to protect downstream catalytic converters under heavy payload and towing demands.
What's Included
- 4 x Oxygen Sensors (Upstream and Downstream Positions)
Technical Specifications
| Fitment | 2017-2019 Nissan Armada |
|---|---|
| Engine / Chassis | VK56VD 5.6L V8 / Y62 |
| Stock Output | 390 hp / 394 lb-ft |
| Replaces OEM Part # | 22693-1PM0A, 226A0-BV81A, 234-4985, 234-4986, 234-9148, 22693-9HP0A, 226A0-4LA1A, 2344985, 2344986, 2349148 |
Compatibility
- 2017 Nissan Armada 5.6L V8 (SV, SL, Platinum)
- 2018 Nissan Armada 5.6L V8 (SV, SL, Platinum)
- 2019 Nissan Armada 5.6L V8 (SV, SL, Platinum)
Frequently Asked Questions & Fitment Warnings
Does this fit the Y62 Armada?
Yes, this is a direct fit for the 2017-2019 Nissan Armada equipped with the VK56VD 5.6L engine.
Do I need to clear ECM codes after installation?
Yes, clearing existing diagnostic trouble codes and resetting adaptive long-term fuel trims with a scan tool ensures the ECM promptly recognizes the new sensor signals.
The Nissan Durability Standard
Heavy-duty full-size SUVs require dependable lambda monitoring to withstand the sustained exhaust gas temperatures generated during heavy hauling and high-load towing.
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