Tachometer

Hey all, new to this place but not new to the Subaru comunity. I was a prior 2000 2.5RS owner, had to sell my baby to go back to school...but recently aquired a 1986 GL-10 XT 5 speed turbo 4WD. WOO HOO! I'm loving this car, got it at a bargin...but have one major issue... The lady I bought it from smacked into something in the front drivers blinker area...destroying the blinker and bending the fender. I've got a replacement fender and blinker though, which is a good thing. The bad news is that the air suspension isn't working at all. On the dash I'm getting the "high" blinking and the car rides like it has no damping whatsoever. It's pretty awful. I got the fender off to take a look in there, and everything is connected. What I'm trying to figure out is A) what is wrong and what I can do to fix it. Of course I can just go to a junkyard and get coilovers...but honestly, I would like to get this fancy stuff working again. I removed the air compressor and it looks fine. Plugged it back into the car and turned it on (without the air lines attached) and there was nuthin...no air coming out. Any thoughts/ideas/suggestions on what to do to troubleshoot this? Thanks in advance!