Download the stable 4.12.4 installer from the official HP Tuners customer portal.
Every ECU version uses a unique operating system (OS). For the software to display tables correctly, HP Tuners must map out the hex code into a graphical user interface (GUI). Version 4.12.4 introduces expanded definition files for:
Before updating, preserve your existing working environment to prevent data loss. Navigate to Documents > HP Tuners > VCM Suite .
Before making changes, open VCM Scanner. In version 4.12.4, you can build custom graphs and charts that mirror the tables in VCM Editor. For example, if you are tuning Volumetric Efficiency (VE), create a histogram in the Scanner that plots Air-Fuel Ratio (AFR) Error against RPM and Manifold Absolute Pressure (MAP). Step 3: Editing and Flashing
What or engine modification are you working on right now?
Many consider 4.x and 5.x similar, but power users know the subtle differences. Here is what 4.12.4 does better :
Are you tuning using a or an aftermarket wide-band O2 sensor ? Share public link
The VCM Suite consists of two primary applications: and VCM Scanner . Version 4.12.4 brings quality-of-life improvements and technical stability to both. VCM Editor