Oxygen Sensors for Toyota Avalon Camry (2007-2014) 3.5L Downstream

Direct-Fit Downstream Oxygen Sensor Kit for 2007-2014 Toyota Avalon, Camry

What it Does: The Downstream Oxygen Sensor Kit replaces degraded post-catalytic monitoring sensors on the 2007-2014 Toyota Avalon and Camry to restore accurate ECU closed-loop fuel trimming and clear catalyst efficiency trouble codes.

The Stock Toyota Avalon, Camry Sensor Degradation and Latency

Factory downstream heated oxygen sensors on the 2GR-FE 3.5L V6 endure continuous thermal cycling, carbon particulates, and moisture in the exhaust stream. Over time, silica poisoning and carbon soot glaze the internal ceramic sensing element, significantly slowing millivolt switching response. This sensor degradation misreports catalytic converter efficiency to the ECU, frequently triggering false P0420 and P0430 diagnostic trouble codes, activating the check engine light, and prompting rich-condition fuel trim adaptations that degrade fuel economy and increase carbon fouling.

The Engineering Solution

This 2-piece downstream sensor set is engineered to OE-grade tolerances with rapid-heating planar zirconia ceramic elements shielded by laser-welded, double-walled 304 stainless steel housings. The heavy-duty outer sheath resists thermal shock and road debris impingement, while the internal gas-permeable filter maintains ambient air reference integrity. Pre-wired with OEM-matched weather-pack harnesses and factory pinouts, these direct-fit sensors ensure precise 0.1V to 0.9V feedback signaling to your engine management system without wire splicing or terminal repinning.

Technical Specifications

Compatibility

• 2007-2014 Toyota Camry (3.5L V6 2GR-FE; Base, LE, SE, XLE)
• 2007-2014 Toyota Avalon (3.5L V6 2GR-FE; XL, XLS, Limited, Touring, XLE)

Frequently Asked Questions

Does this fit the XV40, XV50, XX30, and XX40 Avalon, Camry?
Yes, this is a direct fit for the 2007-2014 Toyota Avalon, Camry equipped with the 2GR-FE engine.

Will replacing downstream sensors clear a persistent P0420 or P0430 trouble code?
Yes, if the diagnostic trouble code is caused by slow sensor heater response or deteriorated voltage output, this direct-fit kit restores proper ECU threshold readings.

The Toyota Precision Standard

Toyota powertrains depend on exact stoichiometric feedback to achieve their renowned longevity, and maintaining active, calibrated oxygen sensors protects catalytic converter substrate from unburned fuel contamination while ensuring complete emissions compliance.