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Piaggio ECU
Flashing

Flash the Marelli ECU in your Vespa, Beverly or MP3: MIU G4 and IAW 11MP units read and written through the diagnostic connector.

4Models
4Model years
2ECU families
Find your Piaggio See pricing
Supported models

Every Piaggio we can flash

Model years, the ECU inside and the interface it needs. Bench wiring diagrams for every model are in your MotoFlasher account.

Model Years ECU Interface
BEVERLY 300/400 2021 + Marelli MIU G4 Piaggio · 512 KB Tactrix OpenPort 2.0CANable
MP3 300/400 2021 + Marelli MIU G4 Piaggio · 512 KB Tactrix OpenPort 2.0CANable
MP3 500 ABS Hpe Sport Advanced 2021+ Marelli IAW 11MP TC277 Add-on Tactrix OpenPort 2.0CANable
VESPA 125/300 2021 + Marelli MIU G4 Piaggio · 512 KB Tactrix OpenPort 2.0CANable
Inside the bike

Piaggio ECU families

Which engine computer each model uses decides how it is read and written. MotoFlasher picks the right protocol for you.

Marelli Included

MIU G4

Piaggio · 512 KB

BEVERLY 300/400, MP3 300/400, VESPA 125/300

Tactrix OpenPort 2.0CANable
Marelli Add-on

IAW 11MP

TC277

MP3 500 ABS Hpe Sport Advanced

Tactrix OpenPort 2.0CANable
How it works

Flash your Piaggio in four steps

  1. 01

    Connect

    Plug your interface into the diagnostic port, or wire the ECU on the bench with the diagram from your account.

  2. 02

    Read & back up

    MotoFlasher identifies the ECU and reads the full flash. Keep that original file: it is your way back.

  3. 03

    Tune

    Edit fuel, ignition, limiters and the other maps in your tuning editor, or load a file from your tuner.

  4. 04

    Write

    MotoFlasher corrects the checksum and writes the file back. Start the bike and ride.

Why flash a Piaggio or Vespa ECU?

Piaggio’s scooters are tuned at the factory for emission tests and the quietest possible ride: lean fuelling at small throttle openings, a hesitant pick-up from a standstill and a soft response. Owners who fit an exhaust or a variator find the stock map no longer matches. A reflash corrects the fuelling and the response for how the scooter is actually ridden.

Piaggio ECU families

  • Marelli MIU G4: the Vespa 125 and 300, Beverly 300 and 400, and MP3 300 and 400 from 2021.
  • Marelli IAW 11MP (TC277): the MP3 500 hpe Sport and Advanced from 2021.

Both are read and written through the diagnostic connector, without removing the ECU. The same Marelli ECUs are used across the Piaggio group: see Aprilia and Moto Guzzi.

Flashing a Piaggio or Vespa, step by step

  1. Keep the battery on a charger.
  2. Connect a Tactrix OpenPort 2.0 or CANable to the diagnostic connector.
  3. Read the ECU and save the original file.
  4. Edit the maps or load the file from your tuner.
  5. Write it back. MotoFlasher corrects the checksum.

Frequently asked questions

Can I flash a Vespa ECU?

Yes. The 2021-onwards Vespa 125 and 300 with the Marelli MIU G4 ECU are read and written through the diagnostic connector.

Is the MP3 500 supported?

Yes, on the Marelli IAW 11MP ECU.

Which interface do I need?

A Tactrix OpenPort 2.0 or a CANable.

Can I go back to the stock map?

Yes. MotoFlasher reads the full original file before writing anything, and you can write it back at any time.

More brands

Flashing another brand?

Aprilia 12 models Benelli 6 models BMW 3 models CFMoto 47 models Ducati 12 models GOES 7 models Honda 19 models Italjet 1 model Kawasaki 33 models Kove 13 models KTM 7 models Loncin 2 models Moto Guzzi 5 models Moto Morini 3 models ODES 1 model QJ Motor 9 models Segway 5 models Suzuki 17 models Triumph 14 models Voge 20 models Yamaha 17 models Zontes 17 models ZX Moto 1 model

Ready to flash your Piaggio?

One license, every supported model of the brand, free software updates and support from people who tune bikes.

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