Vespa GTS 300
- ECU
- Marelli MIU G3
- ECU maker
- Marelli
- Model years
- 2017-2020
- Stock firmware
- Included · 512 KB
What you can tune
22 calibration tables · 2 scalars · 2 patches & flags — all editable in the browser.
Getting started
Start from the included stock firmware, or upload your own BIN read.
Heat-mapped tables, editable 2D/3D graphs, cell math, AI auto-tune, and compare against other reads.
Download a standard modified BIN and flash it with your own hardware and software.
Calibration maps
| Map | Group | Tables |
|---|---|---|
| Main Fuel # | Fuel | 2 |
| Fuel correction by air temperature # | Fuel | 2 |
| Fuel correction by engine temperature | Fuel | 1 |
| Fuel enrichment during warm up | Fuel | 1 |
| Spark advance angle characteristic map # | Ignition | 2 |
| Spark advance at idle # | Ignition | 3 |
| Spark advance correction at idle by engine temperature | Ignition | 1 |
| Spark advance correction by engine temperature | Ignition | 1 |
| Spark advance correction by air temperature | Ignition | 1 |
| Throttle (°TPS) | Throttle / ETV | 1 |
| Engine torque | Torque | 1 |
| Idle engine speed | Idle | 1 |
| RPM Limiter # | Limiters | 3 |
| RPM | Other · Axes | 1 |
| Info | Other | 1 |
2 adjustable scalars (rev limits, thresholds, corrections)
| Fan activation temperature |
| Delta temperature fan deactivation |
2 patches & flags (toggle features on/off)
MotoEditor edits the calibration and exports a standard BIN — reading and flashing the ECU is handled by your own flashing hardware and software.
Frequently asked
What can I tune on the Vespa GTS 300 2017-2020?
This verified definition exposes 22 calibration tables — including fuel, ignition, throttle, limiters, idle, other · axes and torque maps — plus 2 adjustable scalars and 2 feature patches, all editable in your browser.
Do I need to remove or open the ECU?
No. MotoEditor edits the calibration and exports a standard BIN. Reading the stock file from the bike and writing it back is done with your own flashing hardware and software.
Which ECU does this Vespa GTS 300 definition cover?
The Marelli MIU G3 (Marelli). Every map address and scaling is verified against the stock firmware, so what you edit matches the real calibration.
Can I use my own stock file?
Yes. Start a project from your bike's stock BIN and your changes apply to it, or begin from the built-in reference — either way you export a standard BIN.
How much does access cost?
MotoEditor is a single subscription that unlocks the browser editor for this definition and every other bike in the library — no per-project or per-download fees.