Fuel pressure problems?

It is hard to say. we should run the does to see which ones are stored. here is a guide to help you. Does the run okay okay other than a high idle?

https://www.2carpros.com/articles/buick-cadillac-chevy-gmc-oldsmobile-pontiac-gm-1983-1995-obd1-code-definitions-and-retrieval-method

I could be a fuel pump issue but we need more information so we head in the right direction to fix it. Let me know what you find.