Again a control unit history?

Hello dear forum people! I have the feeling that I’m probably the thousandth thread with the crap. I’ve read through a bit, but somehow not found the right thing.Shortly to the speed: Fiat Punto 176 1.2l 75 SX BJ.: 09.1994 HSN/TSN: 4001/662 Had a breakdown on the BAB. Gas assumption denied, speed quickly from 160kmh to 90 down, while uncoupled on the stand strip dead. Since never jumped. To a friendly mechanic brought, eternally no plausible Feh I am not aware that the car has an immobilizer, since the dashboard never started a code lamp (unless…the exact one is burned down). So ordered over the bay used ECU with identical numbers. Built in…no need. Colleagues also can’t get in with the reader. Why? But coded? I only have two blue ones. I found the ECU, then read out the ECU:Codes 40, 42, 44, 46, 48Control unit number: IAW 8F.5T/060P-11 FIAT PUNTO 1.2 CM MPI ECOL. 46425009 61600.218.07 E 12V= I don’t know that the car has an immobilizer, because in the dashboard never started a code lamp (unless…exactly the one is burned through). Key. :/ Can it be anything else? Don’t know what to do. Don’t have money for n new ECU. What do you have for experience with repairs/Holland? Thanks in advance…