Always save the original, unedited read file as Stock_VehicleName_Date.hpt and lock it in a dedicated folder. Never edit this file.
Visit the official HP Tuners website and navigate to the Downloads section. Ensure you are downloading the stable release of 4.12.4 (or the latest sub-version within that branch). Save the executable file to your desktop. Step 2: Install Drivers First hp tuners 4.12.4
This public link is valid for 7 days and shares a thread, including any personal information you added. This link or copies made by others cannot be deleted. If you share with third parties, their policies apply. Can’t copy the link right now. Try again later. Always save the original, unedited read file as
Some users reported "Unlicensed Vehicle" errors immediately after updating to this version. To fix this, you must Resync Interface under the Help menu while connected to the internet. Ensure you are downloading the stable release of 4
Plug into the OBDII port and open VCM Scanner . Start the engine, record a log during a test drive, and review your data to ensure the engine is running safely and making the expected power. Staying Current in 2026 and Beyond
What specific of vehicle are you tuning?
April 20, 2026 Category: Software Updates / Tuning Tech