1981 Ecm
I don’t think that the S/W I use works on too many carbureted engines. On the bottom of this page there are the ECU / PCM numbers that it does work with.
http://winaldl.joby.se/aldldata.htm
As far as I know, there isn't any software out that can.
The ECM in the '81 was unique. Although some other GM cars used a feedback carb in the 80s, no others used the same ECM. You might be able to use one of the newer ECMs however. I bought a tunable ECM off of EBAY a few years ago and it was supposed to work with all of the feedback carb cars (81 vette was listed) but it died shortly after it arrived. I suspect the capacitors leaked since it was built in the early '80s.




