Harley Davidson use the same electronics platform and ECU across many models. Woolich Racing categorizes the Harley Davidson models into groups (e.g. Softail, Sportster etc.) as often the differences between individual models within a group is cosmetic or frame related. The ECU part numbers for Harley Davidson are then shared across several models so are not always unique like they are for other manufacturers.
In order to write to your Harley Davidson ECU, please follow these steps:
- Before writing to the ECU, read out the bin file from your ECU and save the file to a known location on your computer.
- Do not modify this file!
Once the bin file has been read click 'File' > 'Save', and save the file as your MASTER BACKUP file.
- Use this file as starting point that you can always revert to should you want to return your ECU to stock.
- It is a good idea to use the Motorcycle VIN as the filename to easily identify it in the future.
- Create a backup copy of the bin file that you read out in Step 1 above
Save this file as your TUNING file.
Use this bin file for all changes made during tuning
You must only use this saved TUNING file for tuning/setting changes, and writing back to the ECU.
- If you make significant changes then it is a good idea to save versions of the bin file at stages which you can easily revert to if you have problems later
- When you have finished making changes to the tuning and would like to write them to the ECU, be sure to load the tuned bin file created in Step 2 above
- Write to the ECU normally.
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