HP Tuners RTD4 & TDN App Reading & Writing Instructions

Follow these steps to link your truck to the CalcoDiesel.com TDN Network, read your stock file, and flash mod files. 

                                                               

Stock File Reading Instructions: 

  • Plug your CalcoDiesel.com RTD4 Tuner into the truck’s OBD2 Port
  • Download the TDN app (HP Tuners Remote Tune Delivery Network)

Android

    1. Open a browser on the phone or tablet.
    2. Go to the Tune Delivery Network (TDN) page in the Google Play Store: https://play.google.com/store/apps/details?id=com.hptuners.tdn
    3. Click the Install button.

Apple iOS

    1. Open a browser on the phone or tablet.
    2. Go to the Tune Delivery Network (TDN) page in the App Store: https://apps.apple.com/us/app/tune-delivery-network-tdn/id1590560864
    3. Click the Install button.
  • Open the TDN app and create an account using the account option on the main screen or login using your existing HP Tuners account (If you have one)
  • After the account is created and signed in select link tuner on the screen in the app
  • To learn how to connect your HP Tuners MPVIx or RTD4 to your phone via bluetooth, please watch this VIDEO
  • If you are using an MPVI3 instead of the RTD4 enter the INVITE CODE: VGYN-6225 to link to Calcodiesel.com (Calco Tuning S De RL De CV) as a tuner, and you will automatically be accepted into our system.
  • Select the TOOLS icon on the bottom right corner of the main menu. Choose SETUP RTD4. Make sure you have your phones Bluetooth AND WIFI activated
  • Follow the prompts on the screen to sync your phone to the RTD4

  • Once the sync process has completed select the LIGHTNING BOLT icon on the bottom of the screen (see below) to begin the READ process.
  • Turn the Ignition to the RUN Position and Follow the Prompts on the TDN app, then select READY and CONTINUE.                                                       
  • Allow the device to sync and then the app will read the stock file, this will take over between 5 and 15 minutes depending on the year/make/model of the truck.                                                        
  • Once the read completes the TDN App will send the stock file to our TDN Network 

                                                               

 Tunes typically take 1-2 business days to process but sometimes more in certain situations 

Tune Writing Instructions:

  • You will receive a notification through the app when your mod file is ready 
  • We strongly recommend connecting your truck to a battery charger for the process, but this is optional. 
  • Plug the RTD4 into your trucks OBD2 port and turn the ignition to the RUN Position
  • Open up the TDN app and go choose the flash option from the main menu (Make sure you have your phones bluetooth AND wifi activated) 
  • You should see the restore file which is your STOCK READ and your CalcoDiesel.com Modified  file(s)
  • Push and hold on the modified tune file name and choose full write to write the tune 
  • Follow onscreen prompts to load the tune onto the truck

  • Once the tune is loaded you are good to go from there (this may take 5-15 minutes depending on year/make/model)
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