running codes

Hi everyone, I have a 1988 Ford Mustang GT 5.0 L. I recently started working on it after it had been left to sit for around 7 years. Since then I have gotten it to start and idle and recently I used an OBD I reader to troubleshoot whatever issues there might be. I received codes 81 (Air diverter solenoid fault, intake air control circuit / air injection diverter), 82 (Air diverter solenoid circuit fault or supercharger bypass circuit fault), and 95 (fuel pump secondary circuit fault). Can anyone help me with how I can go about addressing these issues? Any help would be much appreciated!

I will be honest, I have no idea if the air pump and related plumbing are still hooked up. I also don't know what that looks like.

I also don't know if the car is mass air swapped. Keep in mind, this was my grandpa's car so I know very little on what was done to it!. If you could walk me through I could check these things, that would be great.