36
TUNING THE VEHICLE
20. When the HDGT is finished reading the
file, it will prompt you to select a tune.
• Choose between Power/Economy,
Economy, and Stock tunes.
• Use the buttons on the right to
highlight the tune you want.
• Press the bottom left button to Select
the highlighted tune.
21. The HDGT will process the calibration.
• This part of the tune installation can
take up to ten minutes.
• The HDGT will show a percentage
counter to track its progress.
• Do NOT interrupt the HDGT.
22. The HDGT will read the calibration.
• This process should take about five
minutes or less.
• The HDGT will show a percentage
counter to track its progress.
• Do NOT interrupt the HDGT.
23. The HDGT will configure the vehicle.
• This process is fast; it should take a
minute or less.
• Do NOT interrupt the HDGT.
24. The HDGT will write the calibration.
• The HDGT is actively writing the tune
to the engine computer.
• This process can take between 15 and
45 minutes; it will take about half an
hour on most vehicles.
• Do NOT interrupt the HDGT.
SELECT TUNE
Power/Economy
Economy
Stock
UP
DOWN
SELECT
Processing Calibration
7%
Setting...
Power/Econ Tune
Please wait
Do Not Unplug
Reading Calibration
45%
Please wait
Do Not Unplug
005F0000
005F2A00
005F4922
00052A00
Configuring Vehicle
Please wait
Do Not Unplug
Writing Calibration
0%
00
000000F0
00010000
0003FF32
000104B0
002004B0
000DD522
Please wait
Do Not Unplug
NOTE: If installing on a Cat, see page 38.
