Hey guys, I've had this civic for right at a year now, 18k miles and not a lick of trouble out of her. And out of the blue the other day she started giving me a hesitation. (I should also add that she has been spark knocking for a while under heavy loads or going up the mountain at school) Anyway, she started hesitating at lower RPMs, in first gear if you floor it, she bogs up until about 4500 rpms and then takes off. If any of you ever rode a 2-stroke it feels like hitting the powerband. Anyway, my first thought was tune up. So I replaced the plugs and wires to start with. She started up, ran great for about 60 seconds and then cut off, completely lost all spark. So I ordered a brand new dizzy, slapped that on today and she cranked up right away. But she's still hesitating. Any help would be awesome. The car has 99k miles, and all regularly scheduled maintenance has been done.