I have a 155 2.0 16V, 1996 and am having a problem with the key code unit. The car's battery went flat and I attempted to start it with jump leads. The code light on the dash came on and stayed on. The local Alfa specialist (not main dealer) suggested pulling the power on the control unit and it would probably revert to normal. He said this is a known problem after flat battery. It didn't work. The Alfa didtributors in Dublin, Fiat, cannot find the over-ride code. They say it is on a card which has got lost! Does anyone know a way around the code, do both the keycode unit and ECU have to be changed or can the keycode unit be changed on its own. Help!!!