ECUHELP KT200II ECU Programmer is confirmed to read and write Fiat Marelli IAW 5NF on Bench. In the following paragraphs, I quoted one user’ experience for your reference.
Firstly, please connect to the control unit use the multifunction cable
Notes: Not all the ECUs can be cloned.
Tips of using KT200II to read and write Fiat Marelli IAW 5NF on Bench:
Step 1: Select EEPROM
Read EEPROM
Step 2: Open EEPROM dump and all the changes should be made according to the yellow fields.
Now you can both read and write flash on bench.
After finishing return EEPROM to Ori.
Without the procedure, you will only have read, no write available with the ECUHELP KT200II.