J1850 ECU. This is a flash-tuning & diagnostics tool with multiple applications. Adjust fuel injection / ignition settings and read & delete trouble codes of your stock Delphi ECU. The Power Vision is connected to the ECM / ECU diagnostic port. Compatible with a PC and Apple computers; editing tunes without a computer is not possible. This fuel tuner updates the tables directly within the ECU to change the air/fuel ratio and get you more power; speed or fuel-efficiency. This device can hold multiple tunes at once for each of your favorite modifications and can either be taken off the bike; after flashing the custom tune; or left on to be used as an extra instrument panel to monitor and record engine data. Custom Dynojet engineered tunes (fuel maps) can be downloaded from the Dynojet website. Tunes can always be edited with a computer to suit your preference and bike. Custom tunes are flashed to the stock ECM / ECU. Keep favorite tunes available in the Power Vision to easily reflash your favorite upgrade and drive style to optimize your motorcycle for a specific use. Stock tunes in the bikes ECU can be saved on the Power Vision. Offers: - Weather & shock resistant. - Flash Tune without a computer; quickly and easily. - Does not need to stay installed after flashing. - Load tunes from an Apple/Windows computer. - Pre-Configured tunes available to download for free. - Edit tunes with a computer. - User friendly & intuitive custom tuning software (Power Core C3 only). -