The Buick Oxygen Sensor, which forms a part of your car's emission control system, is an electronic device that helps in the regulation of the engine's air-fuel ratio. A perfect air-fuel ratio will cause the engine to burn fuel efficiently, and minimize the presence of unburnt fuel and pollutants. A lean or rich mixture will cause the engine to run poorly and will increase the pollutant emissions from your car. The oxygen sensor helps in maintaining an average perfect ratio by measuring the difference in the oxygen content of the exhaust and the air. This difference is transmitted to the car's engine control unit (ECU) in the form of a voltage that helps the ECU determine and regulate the amount of fuel that needs to be injected. If the oxygen sensor in the car fails, the ECU will be unable to determine the correct amount of fuel for the engine. This would lead to an inefficient consumption of fuel and an increase in the presence of unburnt fuel and pollutant emissions.

If your Buick Oxygen Sensor is not functioning properly, you must replace it as soon as possible. carpartswarehouse has a wide range of car parts for every car make and model. We sell genuine OEM replacements and premium aftermarket parts at unbeatable prices. Each of our car parts has been tested to meet or exceed industry standards. We provide free shipping on all orders above US $99.

Ordering auto parts online has never been easier. To find the car parts you need, just select the right year, make and model of your car on our online catalog. If you encounter difficulties in finding the oxygen sensor for your Buick, give us a call and we will find it for you. As we have warehouses all across the country, you can be assured of receiving the ordered parts on time.

At carpartswarehouse, making sure our customers get the right part at the best price is our top priority. For any technical assistance, call our toll-free support line at 1-800-565-5021 or email us at [email protected]. Our US-based sales and support teams are here to answer all your questions about our car parts.