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Automotive Scan Tools refer to electronic devices used in the automotive industry for diagnostics and tuning purposes. They are designed to interface with a vehicle's onboard computer system, also known as the Engine Control Unit (ECU), and retrieve data related to various aspects of the vehicle's performance, such as engine speed, fuel consumption, and emissions levels. These tools can be used to diagnose faults in a vehicle's systems, providing technicians with real-time data and enabling them to quickly identify and address issues. They may also include features for resetting service lights, calibrating sensors, and adjusting engine parameters for improved performance or fuel efficiency. In addition to diagnostic functions, Automotive Scan Tools can also be used for tuning purposes, allowing technicians to modify the ECU settings to optimize engine performance. This may involve adjusting fuel injection, ignition timing, or other variables to improve power output, torque, or fuel economy. Overall, Automotive Scan Tools are essential tools for automotive professionals and enthusiasts alike, providing valuable insights into a vehicle's performance and enabling users to diagnose and address issues quickly and efficiently.