I have a 94 honda prelude that is doing the same thing. I have replaced the condensor, the compressor , evap , drier and cleaned out all the lines and its doing the same sh*t I wish I could find someone who knows what the f*ck they are doing because I have rebuilt the whole A/c and still the same crap... At night and in the morning its Ice cold, but during the day its only cold when I'm driving. WTF?????