35
TUNING THE VEHICLE
18. The HDGT will prepare to install the tune.
• This process is fast, it should take a minute or less.
• The HDGT will show a percentage counter to track its progress.
• Do NOT interrupt the HDGT.
Preparing Device
6%
Please wait
Do Not Unplug
19. The HDGT will read the file.
• This means that the HDGT is reading the stock file from your
engine computer.
• This part of the tune installation can take between ½ hour
and 2 hours.
• Do NOT interrupt the HDGT.
Reading File
0%
00010000
000102A0
0003FF32
005002A0