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42
TUNING THE VEHICLE
TUNING CAT ENGINES: PHASE 2
1. Remove the microSD memory card from
the HDGT.
2. Run the Heavy Duty Update Agent on a
computer with Internet access.
3. Plug the microSD card into the card reader.
4. Plug the card reader
(with the microSD card)
into a computer USB port.
• Close the Autoplay window if it opens.
• Close the window or click Continue
without scanning if a dialog
box pops up with an option
to “scan and fix BDCARD.”
The following installation steps can only be completed with a Microsoft
Windows
®
computer that has Internet access. If you do not have access
to a suitable computer, contact your Bully Dog dealer for help.