i would replace ur clutch master cylinder. You can pick em up for like 60 bux at autozone. My friend had the same problem on his 94 civic dx. His clutch pedal dropped all the way to the floor. We figured his clutch was just really bad cuz it would slip. Replaced the master cylinder and his clutch worked just fine. The way we tested it wasnt in any books... but we disconnected the master cylinder and pulled it off then drove his car around without using the clutch. Worked just fine...