The car runs "fine", hell the board looks very much similar enough.
The only real problem here is that for whatever reason lambda values are very much off, as such it's really nothing more than an emergency ECU for me now.
Fun experiment but can't be arsed to figure out the lambda issues, a proper ECU is just a couple of $$ more so it's of no use really.
If you open the ecu and look at the wideband controller you would see that they are not the same, additionally the circuitly is not the same. When it errors out from Heater circuit closed loop lambda is disabled.