Well here ya go...encountered a problem about a week ago where I cleaned underhood, and then the fun began. Took the 88 'lude out and it started to stumble...badly...everything before hand was good though. Got about 2 miles and had a hard time actually getting anywhere...had to find a swwet spot in the throttle just to limp her home. Thought it was running lean....did the fuel filter, plugs ( which looked bad anyway) and the 02 sensors. Fired it up yesterday...ran well. UNTIL...it got up to operating tempature...then it began again, but not nearly as bad. THe only thing I can think of thats left is the Cat. That when I heated it up last time ( it was RED HOT) that I wrecked it internally. I let it sit for 30 minutes last night, and fired it up again...no problems, so this only occurs when it reaches Op Tempature. Any thoughts, ideas, suggestions? I figured I'd rod out the cat to see what happens and go from there... ALSO....my water level seems to be constantly low...it is not leaking from the Radiator, or the upper or lower hose, and the water is not going out the exhuast, like a head gasket problem, nor is it in the oil. Could there be a little hose comming of the water jacket that can't be seen that goes all of the time on these things? Yeah I'm a honda rookie... how about a hand from the old pro's?!