Okay, i've been reading about the whole flashing the computer deal and now my question is... my car will not shift from 4th to 5th over like 90 mph (dunno) . i'll take 4th up to like 100 and try to shift, won't go, as the car slows down to around 90, goes right in like a slut. i've asked car buffs and people with more car knowledge, they have all told me that it's the computer. they've been with me when i've tried. so if i flash my computer, could that possibly reprogram the shift points on my computer?