i just bought a 95 civic ls. i have never messed with the automatic tranny before and im not sure if that is the problem. when u shift into drive, drive a little ways then stop the rpms drop low and it begins to idle rough. it wont idle back up until u give some gas. and the car kinda shakes when it does this. it does not do it in park or when u first shift into gear just after it drives a little. any help would be great.