Oxygen Sensors for Toyota Venza (2009-2015) 2.7L Upstream

Direct-Fit Upstream Air-Fuel Ratio Oxygen Sensor for 2009-2015 Toyota Venza (AV10)

What it Does: The Upstream Air-Fuel Ratio Oxygen Sensor monitors exhaust stream gas composition ahead of the catalytic converter on the 2009-2015 Toyota Venza to deliver accurate closed-loop feedback, restoring factory fuel trims and clearing diagnostic trouble codes.

The Stock Toyota Venza Sensor Degradation

Exhaust gas temperature fluctuations and sustained thermal cycling routinely degrade the factory zirconia planar sensing element inside the AV10 platform's exhaust manifold runner. Over 80,000 to 100,000 miles, continuous exposure to unburned hydrocarbons, oil blow-by, and carbon fouling leads to sensor poisoning and slow switching rates. On the 1AR-FE 2.7L engine, this deterioration triggers ECU fault codes like P0135 or P2195, causing positive Long-Term Fuel Trim (LTFT) drift, unmetered rich running conditions, erratic idle, and eventual catalytic converter thermal overload.

The Engineering Solution

This replacement upstream air-fuel ratio sensor is built with a high-grade ceramic sensing substrate shielded within a dual-layer, oxidation-resistant 304 stainless steel housing. An internal rapid-light-off ceramic heater circuit ensures rapid warm-up times, forcing the ECU into closed-loop operation seconds after cold start to reduce cold-start tailpipe emissions. Pre-coated anti-seize M18 x 1.5 threads prevent thread galling in the exhaust bung, while an OE-spec 4-pin weather-pack connector matches factory pinouts for true drop-in integration without cutting or splicing.

What's Included

• 1x Upstream Oxygen Sensor (Air-Fuel Ratio Sensor) with 4-Pin Harness Connector and Coated Threads

Technical Specifications

Compatibility

• 2009-2015 Toyota Venza Base 2.7L 4-Cylinder FWD / AWD
• 2012-2015 Toyota Venza LE 2.7L 4-Cylinder FWD / AWD
• 2012-2015 Toyota Venza XLE 2.7L 4-Cylinder FWD / AWD

Frequently Asked Questions & Fitment Warnings

Does this fit the AV10 Venza?

Yes, this is a direct fit for the 2009-2015 Toyota Venza equipped with the 1AR-FE 2.7L engine. Does not fit 3.5L V6 (2GR-FE) models.

Do I need to apply additional anti-seize paste to the threads?

No, the threads feature a factory-applied anti-seize coating; applying additional compound risks contaminating the internal ceramic element.

The Toyota Caliber

Engineered to uphold factory Japanese reliability, this sensor preserves balanced stoichiometric air-fuel control, smooth idle characteristics, and consistent fuel economy under all real-world commuting conditions.