Hi all,
If I replace a popped engine and ECUs in a Stilo with ones that have done less miles what will the mileage show on the cars cluster? - Will it be picked up from ECU & show the donor cars mileage or will it show the original cars mileage?
I assume in either case the mileage will flash & need proxy realigning.
Thanks in advance, Anne.

if your replacing the ecu with the correct engine for that ecu i think all will be ok

but if you replace engine and keep your own ecu it will just show original miles.

It did on my Punto anyway, swapped engine and kept original ecu

hope this helps