digital lights for fuel and air center out on 1990 Cadillac DeVille

both lights went out same time I replaced some fuses left side under dash lights still out

Asked by for the 1990 Cadillac DeVille
Not 100% if this applies to your vehicle or not, but GM had many problems with the power supplies to their VFD digital displays from the mid 80's through the mid 90's. Some shops repair these boards, and can ship you a rebuilt unit MUCH cheaper than the stealership. Most times, the stealership cannot even get the replacement boards to fix the issue. Good Luck!