Look here: how to connect Fgtech galletto v54 master with a Marelli ECU on Fiat
Marelli MJD 8F2 8DF 8DS – MPC5565 – FIAT DIESEL
Marelli MULTIAIR 8GMF.A5 – MPC5565 – FIAT BENZINA
Marelli MULTIAIR 8GMF.01 – SPC5553 – FIAT BENZINA
MARELLI 7GF – MPC5554 – FIAT
How to read/write Marelli ECU at a decent price:
Working Fgtech 4 china clone:
Galletto V54 software download for free:
http://www.obd2vip.com/download/FG%20TECH%20V54.zip
Note that, Galletto V54 sw is only tested with Fgtech 4 above!
YOU ARE TRYING ON YOUR OWN RISK if you try galletto v54 with tools from another vendor.
Enjoy!