i have a 92 si. i lost pressure in my clutch. what do you think could be the problem. i bought the car used so i don't know if it's the original clutch. thanks.

 

Could be a broken spring, bad clutch master cylinder or might just need to be bled.

 

Had the same problem on my Civic, ended up being a bad clutch master cylinder. Look near the pedal where it connects to the cylinder through the firewall. If it is really wet right underneath it, it usually means you have a bad master cylinder. I had to replace my slave as well though.