DigiTune GTS
ECU Tuning Assistant for Windows — Help & Reference
DigiTune GTS analyses data logs from your engine management system and helps you tune your ECU maps — fuel/VE, ignition timing, boost control, idle, and knock thresholds. It supports a range of ECU types and log formats, and can work alongside any ECU software that can export a map file and log CSV.
What's in this guide
Quick Start
Your first tuning session from file load to save
Home Page
The configurable 2×2 dashboard of tuning previews
Loading Files
How to load calibration maps and log files
Log Viewer
Time-series viewer with multi-channel overlays
Fuel / VE Tuning
RPM Column, Load Row, and Global pages
AutoTune
Automated VE table optimisation
Ignition Tuning
Timing table scatter view and editing
Knock Tuning
Setting knock acceptable level thresholds
Boost Tuning
Boost solenoid duty at full throttle
Idle Tuning
Open-loop idle duty by coolant temperature
Temperature Trims
IAT and CLT fuel trim corrections
Utilities
Bulk VE trims, global adjustments, TPS & dead-time helpers
Custom Scatter
Ad-hoc scatter plots from any channels
Settings Reference
All tuning algorithm parameters explained
Keyboard Shortcuts
Full hotkey reference
Customising Hotkeys
Rebinding shortcuts to suit your workflow
Supported ECU types
DigiTune GTS supports the following engine management systems for both log files and map files:
- Motorsport Electronics — ME221, ME442, ME360 and compatible
- MegaSquirt — MS3, MS3Pro, Speeduino, and compatible
- Haltech — Elite series, Nexus and compatible
- Link ECU — G4+, G4X, G5 and compatible
- ECUMaster — EMU Classic and EMU Black
See Supported Log Formats and Supported Map File Formats for the full list of file extensions.
Getting help
If you run into an issue not covered here, contact support at [email protected] or visit digitune.co.uk.