Anyone know were I can find a definition file for my ECM I beleive the number is 1228786 or 16084476 its an 89 Cadillac SeVille it a 4.5L TBI. I have been looking very hard and haven't had any luck. I wanting to burn my own EPROM but can't a samble bin or an definition file that will work with TunerPro or any other software. Could someone please help me out on obtaining one??

Thanks