What does it mean?!

Alright, my dad just got his beater 86 Si Prelude back from a local shop where the brakes were being replaced, and where it was getting a new cat-less exhaust. Now every time the car warms up the PGM-FI light comes on. My dad and I don't think it's anything major, but I cant figure out what why it keeps coming on. I don't know if its a code or what. Any suggestions are appreciated. Thanks :smile:

it might be freaking out from not having a cat converter on
hence catless exhaust.

umm i'd ask in the lude forums i dunno much about the older ones

I did ask there too, but no one ever responded. Its not because of having no cat, cuz my dad says he remembers it going on before the new exhaust.