Genuine OEM VAG Engine Control Unit, part number 07P906023B. This Engine Control Unit (ECU) is the central computer responsible for managing various engine operations, including fuel injection, ignition timing, and emissions control. It is typically located within the engine bay or passenger compartment. This unit is precisely calibrated to ensure optimal performance and efficiency. Genuine OEM ECUs come with the correct firmware and sensor calibration, guaranteeing seamless integration and reliable engine management.