GM_E40_LS2 PC Interface:

PLEASE NOTE:
Install DiabloSport Predator tune or factory hp tune after Predator has done the backup to eliminate any vehicle license errors, 
the tune install is part of the Predator locking procedure. Stopping in the middle of this procedure can result in licensing errors.

Hardware required:
12VDC 1.0A Power supply
DB-9 9-pin Serial Cable Extension (Radio Shack part no: 26.117B)

Download / install “GM_E40 PC Interface” software, follow the steps to finish install.

Once Install completed:

Upload original backup from predator to PC

To get your original backup file from Predator to your PC, follow these steps.
NOTE: The Predator must have saved the original backup before proceeding.
1/ Power the Predator up and connect the serial cable.
2/ Go to the “options” menu, then go to “Custom Tune” menu, then go to” Export Tune”. Select “Original Backup” then go to PC interface software.
3/ In PC interface software select “Get File”, in the following field name your backup file accordingly, the software will save the file in the same folder as the .exe file is located in, which is generally, C:\Program Files\DiabloSport\Predator Interface. If you want to save it to different location, select “browse” and pick your place to save the file in.
4/ Click “Ok” when completed, then click “Ok” on the following box since we already started process in Predator. You should see a “bytes transferred” dialogue at the bottom left of software window and the Predator should have a % progress bar displayed on it during transfer. You will get a “Upload Complete” once file is successfully transferred to your PC.

Download tune from PC to Predator

1/ Power the Predator up and connect the serial cable.
2/ Go to the “options” menu, then go to “Custom Tune” menu, then go to “Import Custom Tune”, then go to PC interface software.
3/ In PC interface software select “Send File”, in the following field select your custom tune accordingly. Then click “Open” and the bottom left of the software should say “Communicating”, then a transfer dialogue should come up.
NOTE: Please disregard the “Error:..Wrong Signature: CRYE4000” in the description box when selecting the tune.
Once completed you will see a “Download Complete” box pop up, just click “Ok”.

Installing Custom Tune into vehicle

1/ Plug Predator into vehicle.
2/ The Predator will display “Custom Tune” instead of “Performance Tune”, select “Custom Tune” and follow on screen instructions.
NOTE: Adjustable parameters can be adjusted on a custom tune.