Why is my AC not cold anymore?

[coldfire07]

I have a 95 s14 and my AC used to be really cold. I took off the condensor and left it off for several weeks while I was doing my turbo setup. When I put everything back together and refilled the system with r-134a, the AC does nothing but blow hot air.

I've searched and come across that I might need to replace the drier, but I would really like to know for sure before I go out and spend $90 on it. I also do not get a puddle of water under my car when the AC runs anymore like I used to.

Do I just need to go ahead and swap out the drier?

Thanks.