my shift light is pretty wonky too. I don't need it tho, do you? Shift by your speedo, not your tach, for best FE. On flat it should go something like this if you have the '92-'93 civic VX (I believe higher mph shift points on the '94 '95 VXes)
shift into 2nd gear at 12mph
shift into 3rd gear at 20mph
shift into 4th gear at 25mph
shift into 5th gear at 31mph
Now that my timing belt is on right, my shift points match yours. When the belt was off a tooth I couldn't shift at low rpms and get in to the high gears as fast. Word to any VX owners who aren't getting this kind of performance, it may be your belt. I've also noted that I can cruise up hills in a higher gear without lag and that my shift point has dropped from about 1700rpm to 1200rpm. Also when I cruise 60mph the rpms were at 2200 and now they are a smidge under 2000. Overall changing the belt position has made the car have better throttle response, lower shift points and better hill climbing ability.