how to change tunes on h&s mini maxx


The H&S Mini Maxx is a popular performance tuner for diesel trucks, and it allows you to change tunes to modify the engine’s performance. Here are the general steps to change tunes on an H&S Mini Maxx tuner:

Note: It’s important to follow these steps carefully, as improper tuning can affect your vehicle’s performance and reliability. Always use tunes that are suitable for your specific truck and driving needs.

  1. Turn Off the Engine:
    • Before making any changes, ensure that your vehicle’s engine is turned off.
  2. Connect the Mini Maxx Tuner:
    • Plug the Mini Maxx tuner into the OBD-II (On-Board Diagnostics) port of your vehicle. This port is usually located under the dashboard on the driver’s side.
  3. Power On the Mini Maxx:
    • Turn the key to the “On” position without starting the engine to power on the Mini Maxx tuner.
  4. Navigate to the Tuning Menu:
    • Using the touchscreen or buttons on the Mini Maxx, navigate to the “Tuning” or “Tunes” menu. The exact wording may vary depending on your tuner’s firmware version.
  5. Select a New Tune:
    • In the tuning menu, you’ll see a list of available tunes. Choose the tune that you want to load onto your vehicle. These tunes are typically labeled for different purposes, such as “Stock,” “Performance,” “Tow,” and so on.
  6. Confirm the Tune Selection:
    • After selecting the desired tune, the tuner will likely ask for confirmation. Confirm that you want to load the chosen tune onto your vehicle.
  7. Wait for the Tune to Load:
  8. Follow On-Screen Instructions:
    • Depending on the tuner’s firmware, you may need to follow on-screen instructions during the tuning process. These instructions can vary, so read and follow them carefully.
  9. Tune Successfully Loaded:
    • Once the tune is successfully loaded onto your vehicle, the Mini Maxx will display a confirmation message. You can now turn off the Mini Maxx tuner.
  10. Start the Engine:
    • Start your vehicle’s engine to apply the new tune.
  11. Test the New Tune:
    • Take your vehicle for a test drive to evaluate how the new tune affects its performance. Pay attention to any changes in power, fuel efficiency, and drivability.

Important Notes:

  • Only use tunes that are compatible with your specific vehicle make and model. Using the wrong tune can cause engine damage.
  • Make sure to follow all safety precautions and instructions provided with the Mini Maxx tuner.
  • Keep in mind that using performance tunes may affect your vehicle’s warranty, and they should be used responsibly and in compliance with local laws and emissions regulations.

Always consult the user manual that came with your H&S Mini Maxx tuner for specific instructions and safety guidelines related to your particular tuner model.

Also Read: