Motorcraft Oxygen SensorRestore your vehicle's performance and make its emissions compliant with this product. Designed to precisely fit your Ford Lincoln or Mercury the oxygen sensor features OE connectors and wire lengths for proper fit and installs with no modifications required.Features:- Direct OEM replacement- Recommended by Ford Motor Company- Designed to provide maximum performance emissions compliance and fuel economy- Same components used in the factory- Tight tolerance ranges minimize repeat repairs and false ?ó?é¼?ôCheck Engine?ó?é¼?¥ light- OE enhancements are included in the most current designs- OE connectors and wire lengths for proper fit and conductivity- Plug and play installation with no splicing requiredOxygen sensors are a vital component of the vehicle's emission system. One end of the primary oxygen sensor detects the oxygen levels in the exhaust flow while the other end connects to the wiring that gives all the information to the computer. The computer then uses the sensor readings to determine if the air/fuel mixture is rich or lean and adjusts the amount of fuel entering the engine accordingly. There is also a secondary oxygen sensor that is used to check the efficiency of the catalytic converter. If the oxygen sensor fails the computer can no longer sense the air/fuel ratio leading to poor vehicle performance.Motorcraft offers you an oxygen sensor that is a direct replacement for the factory part but costs less. Designed to strict Ford Motor Company specifications Motorcraft oxygen sensors provide maximum performance emissions compliance and fuel economy. The primary benefit of Motorcraft oxygen sensors are exact fit harnesses with no splicing required as well as OE connectors that ensure proper fit and conductivity. The product features tight tolerance that minimize repeat repairs and a false ?ó?é¼?ôCheck Engine?ó?é¼?¥ light. Plus Motorcraft oxygen sensors include all OE improvements in the most current designs.