Originally Posted by
Cauf61
But you did change the chip , yes ?
I don't think the mapping of a fiat is the same as the sierra ?
Lol, yes the mapping is totally different, but the hardware is the same, so yes so long as you have the correct calibration they are interchangeable.
The trivia is if Ford had there way they would have used EEC management (which they did in the end with the ST Escos), but Cosworth wanted Weber.
They are a good ECU and very advanced for there time and being Weber is the reason why you find a lot of Italian cars used them, some used two such as the Maserati Bi Turbo, one to manage each bank, as did the Ferrari F40.
Martin