hello ! i want to adapt a new ecu in saxo !
before it have a bosh 3.1 02612004786 and now i got a magnetti marelli 1ap40 9620578580, but in the dashbord appears the simble of the key ! and the car dont start.
i nedd to adapt the (new ecu) but how can i do that! i think it got a tms 374 mcu inside !

thanks in advance !