I know it's kind of old thread... but I recently had a problem with my 93 teg leaking on the passenger floor. Here's a link on how to fix it on 90-93 Integras. http://www.g2ic.com/forums/showthread.php?t=88730

www.g2ic.com has lots of good tips for fixing older Gen2 Tegs. I did this fix and haven't had a leak since.