--- product_id: 123450006 title: "234-9011 Upstream Air Fuel Ratio Sensor O2 Oxygen Sensor for Subaru 2002-2005 Impreza 2.0L-H4 2005 for Saab 9-2X 2.0L-H4 22641-AA042, 2349011, 22641AA042" brand: "amrxuts" price: "VT20079" currency: VUV in_stock: true reviews_count: 13 category: "Amrxuts" url: https://www.desertcart.vu/products/123450006-234-9011-upstream-air-fuel-ratio-sensor-o2-oxygen-sensor store_origin: VU region: Vanuatu --- # 1 Year Warranty Improves Fuel Economy Direct Fit 234-9011 Upstream Air Fuel Ratio Sensor O2 Oxygen Sensor for Subaru 2002-2005 Impreza 2.0L-H4 2005 for Saab 9-2X 2.0L-H4 22641-AA042, 2349011, 22641AA042 **Brand:** amrxuts **Price:** VT20079 **Availability:** ✅ In Stock ## Summary > 🚀 Upgrade Your Ride with Confidence! ## Quick Answers - **What is this?** 234-9011 Upstream Air Fuel Ratio Sensor O2 Oxygen Sensor for Subaru 2002-2005 Impreza 2.0L-H4 2005 for Saab 9-2X 2.0L-H4 22641-AA042, 2349011, 22641AA042 by amrxuts - **How much does it cost?** VT20079 with free shipping - **Is it available?** Yes, in stock and ready to ship - **Where can I buy it?** [www.desertcart.vu](https://www.desertcart.vu/products/123450006-234-9011-upstream-air-fuel-ratio-sensor-o2-oxygen-sensor) ## Best For - amrxuts enthusiasts ## Why This Product - Trusted amrxuts brand quality - Free international shipping included - Worldwide delivery with tracking - 15-day hassle-free returns ## Key Features - • **🔒 Tested for Safety:** 100% tested for stability and durability before shipping. - • **⚙️ Easy Installation:** Designed for a hassle-free, direct fit installation. - • **🚗 Engine Light Solution:** Say goodbye to that pesky check engine light! - • **📏 Perfect Specifications:** Compatible with multiple part numbers for your peace of mind. - • **🌍 Eco-Friendly Performance:** Enhances fuel efficiency while lowering emissions. ## Overview The Amrxuts 234-9011 Upstream Air Fuel Ratio Sensor is engineered for Subaru Impreza (2002-2005) and Saab 9-2X (2005) models, ensuring optimal performance with a direct fit design. This sensor not only resolves check engine light issues but also enhances fuel economy and reduces emissions. With a 1-year warranty and rigorous pre-shipping testing, it promises durability and reliability for your vehicle. ## Description Product description All cars that were manufactured post-1980 feature an oxygen sensor. It is located within the emissions control system. When functioning, the O2 sensor sends data to the management computer located within the engine. In your car, a functioning O2 sensor ensures that your engine is running at top performance. Additionally, this sensor keeps your emissions in check and alerts you to when emissions are too excessive. For states that have vehicle inspection programs to regulate emissions, the use of the CEL and O2 light will alert officials to any excessive emissions. Specifications Wires: 4 Package Included: 1*oxygen sensor Note :Please make sure that the part number and the item picture fit for your car before purchase. Fitment 2002 Subaru Impreza WRX Wagon 4-Door 2.0 1994CC H4 GAS DOHC Turbocharged 2002 Subaru Impreza WRX Sedan 4-Door 2.0L 1994CC H4 GAS DOHC Turbocharged 2003 Subaru Impreza WRX Wagon 4-Door 2.0L 1994CC H4 GAS DOHC Turbocharged 2003 Subaru Impreza WRX Sedan 4-Door 2.0L 1994CC H4 GAS DOHC Turbocharged 2004 Subaru Impreza WRX Wagon 4-Door 2.0L 1994CC H4 GAS DOHC Turbocharged 2004 Subaru Impreza WRX Sedan 4-Door 2.0L 1994CC H4 GAS DOHC Turbocharged 2005 Subaru Impreza WRX Wagon 4-Door 2.0L 1994CC H4 GAS DOHC Turbocharged 2005 Subaru Impreza WRX Sedan 4-Door 2.0L 1994CC H4 GAS DOHC Turbocharged 2005 Saab 9-2X 2.0L H4 Turbocharged Product Features Improve Fuel Efficiency Improve fuel efficiency, save fuel costs, and reduce emissions of pollutants and harmful gases. Stronger Performance The light-off time is extremely short and the reaction is fast. Optimize Engine The core chip is designed and produced independently to optimize engine performance. Long Lifetime Product life is longer than normal sensors. How to Distinguish the Oxygen Sensor Poisoning? Silicon Poisoning Features: The color of the protective tube deposit is between bright white and granular light gray. Oil Pollution Features: A layer of white or gray-black oily deposit on the surface of the protective tube. Antifreeze Pollution Features: The antifreeze is leaked from the cylinder head to the engine and then burned. Lead Poisoning Features: A rusty layer on the surface of the protective tube. Review: Perfect fit, no CEL - Nice replacement for my defective upsteam O2 sensor. Using this in my 02 WRX and it works well. No check engine light, and no codes after using this for a couple weeks. Comes with anti-seize grease on the threads, and the plug fits perfectly with no issues at all. Great replacement product at a fraction of the OEM price. Review: Non-functional - I tried to save some money over the OEM Denso unit, but after I installed it and the P0171 CEL remained, I had a mechanic test this unit and they determined it was not functioning correctly/putting out a signal. So I now paid for both the Denso and this one. Learn from me and skip this one. Suck it up and buy the OEM Denso. ## Features - ▶ Features - Fix the engine light issue. Provide extreme durability for long life, improve fuel economy - ▶ Condition - Brand new aftermarket product, 100% test before shipping to ensure product safety, stability and durability - ▶ Fitment - for 2002-2005 Su-baru Impreza 2.0L; for 2005 Sa-ab 9-2X 2.0L - ▶ The Part Number - 234-9011, 2349011, 22641-AA042, 22641-AA090, 22641AA042, 32005978, 22641AA090 - ▶ Direct Fit - Easy installation. ▶ Guarantee -“1 year” guarantee period.If there are quality issues with the product within one year, you can contact us by email to replace it with a new one for you ▶ 234-9011 ▶ Thread Diameter：0.711 IN ▶ Wire Quantity：4 ▶ Wiring Harness Length：31.50 IN ## Technical Specifications | Specification | Value | |---------------|-------| | ASIN | B07CKZ7SXS | | Best Sellers Rank | #989,031 in Automotive ( See Top 100 in Automotive ) #5,533 in Automotive Replacement Oxygen Sensors | | Brand | Amrxuts | | Brand Name | Amrxuts | | Customer Reviews | 3.7 out of 5 stars 69 Reviews | | Item Weight | 5.3 Ounces | | Manufacturer | Amrxuts | | Maximum Supply Voltage | 5 Volts | | Measurement Accuracy | ±1.5% | | Measuring Range | 12 - 16 (air-fuel ratio) | | Model | 234-9011 | | Mounting Type | Flange Mount | | Output Type | Push Button | | Part Number | 234-9011 | | Specific Uses For Product | Oxygen Sensor | | Style | Modern | | Style Name | Modern | | UPC | 672823541871 | | Upper Temperature Rating | 1350 Degrees Fahrenheit | ## Product Details - **Brand:** Amrxuts - **Item Weight:** 5.3 Ounces - **Maximum Supply Voltage:** 5 Volts - **Measurement Accuracy:** ±1.5% - **Measuring Range:** 12 - 16 (air-fuel ratio) ## Images ![234-9011 Upstream Air Fuel Ratio Sensor O2 Oxygen Sensor for Subaru 2002-2005 Impreza 2.0L-H4 2005 for Saab 9-2X 2.0L-H4 22641-AA042, 2349011, 22641AA042 - Image 1](https://m.media-amazon.com/images/I/61YJ5zlTC6L.jpg) ![234-9011 Upstream Air Fuel Ratio Sensor O2 Oxygen Sensor for Subaru 2002-2005 Impreza 2.0L-H4 2005 for Saab 9-2X 2.0L-H4 22641-AA042, 2349011, 22641AA042 - Image 2](https://m.media-amazon.com/images/I/61ftxRhNUzL.jpg) ![234-9011 Upstream Air Fuel Ratio Sensor O2 Oxygen Sensor for Subaru 2002-2005 Impreza 2.0L-H4 2005 for Saab 9-2X 2.0L-H4 22641-AA042, 2349011, 22641AA042 - Image 3](https://m.media-amazon.com/images/I/511DkJtwAOL.jpg) ![234-9011 Upstream Air Fuel Ratio Sensor O2 Oxygen Sensor for Subaru 2002-2005 Impreza 2.0L-H4 2005 for Saab 9-2X 2.0L-H4 22641-AA042, 2349011, 22641AA042 - Image 4](https://m.media-amazon.com/images/I/51rnGdpiICL.jpg) ![234-9011 Upstream Air Fuel Ratio Sensor O2 Oxygen Sensor for Subaru 2002-2005 Impreza 2.0L-H4 2005 for Saab 9-2X 2.0L-H4 22641-AA042, 2349011, 22641AA042 - Image 5](https://m.media-amazon.com/images/I/61QNPdqFCUL.jpg) ## Customer Reviews ### ⭐⭐⭐⭐⭐ Perfect fit, no CEL *by E***C on April 26, 2021* Nice replacement for my defective upsteam O2 sensor. Using this in my 02 WRX and it works well. No check engine light, and no codes after using this for a couple weeks. Comes with anti-seize grease on the threads, and the plug fits perfectly with no issues at all. Great replacement product at a fraction of the OEM price. ### ⭐ Non-functional *by M***N on May 4, 2023* I tried to save some money over the OEM Denso unit, but after I installed it and the P0171 CEL remained, I had a mechanic test this unit and they determined it was not functioning correctly/putting out a signal. So I now paid for both the Denso and this one. Learn from me and skip this one. Suck it up and buy the OEM Denso. ### ⭐⭐⭐⭐ Good value *by J***E on February 24, 2021* Bought for my 2005 Saab 92-x Aero. Part works as it should. Relatively easy install. It does not come with the clips you need to secure the sensor to the mount next to the engine block, so I just removed the airbox and secured it to the mount using zip ties. Overall, this is a good bang for the buck. OEM sensor is 200$ and this one was around 80. Works perfectly, removed check engine light for upstream o2. ## Frequently Bought Together - Amrxuts 234-9011 Upstream Air Fuel Ratio Sensor O2 Oxygen Sensor for Subaru 2002-2005 Impreza 2.0L-H4 2005 for Saab 9-2X 2.0L-H4 22641-AA042, 2349011, 22641AA042 - Subaru Intake Manifold Gasket Set Turbo Impreza WRX STi Forester XT Legacy GT Outback XT Qty 2-14035AA421 Pair Genuine OEM - JM Turbo intake Hose Fit Subaru 2002-2007 WRX 2004-2014 STI Forester EJ20 EJ25 Turbo charger --- ## Why Shop on Desertcart? - 🛒 **Trusted by 1.3+ Million Shoppers** — Serving international shoppers since 2016 - 🌍 **Shop Globally** — Access 737+ million products across 21 categories - 💰 **No Hidden Fees** — All customs, duties, and taxes included in the price - 🔄 **15-Day Free Returns** — Hassle-free returns (30 days for PRO members) - 🔒 **Secure Payments** — Trusted payment options with buyer protection - ⭐ **TrustPilot Rated 4.5/5** — Based on 8,000+ happy customer reviews **Shop now:** [https://www.desertcart.vu/products/123450006-234-9011-upstream-air-fuel-ratio-sensor-o2-oxygen-sensor](https://www.desertcart.vu/products/123450006-234-9011-upstream-air-fuel-ratio-sensor-o2-oxygen-sensor) --- *Product available on Desertcart Vanuatu* *Store origin: VU* *Last updated: 2026-05-17*