Hello all, I am a novice and maybe you can give me a hand...

About a FIAT Coup? 2000 16v turbo, this uses a Magneti Marelli IAW 4WF/P8.

I would have the need? of riverginare the ecu, however the workshop manual (and other schemes that are on the network), it is not the ecu code, but that I know the key ? with the code (I don't have the machine at hand).

Now, how do I reprogram the ecu in order to mount it and leave?
I don ? clear whether there are actually 2 systems (one with the code, the other without), so I don't know if there are possibly 2 different procedures.
How do I riverginare the control unit, you can explain it to me?
Thanks.