Today while I was driving I realized when I came to a stop that my rpm was jumping between 1k and 1.4k without applying any gas. It drove normally and when I got it home I messed with it some and after revving it a bit it stopped it temporarily. I was trying to find out if something was stuck open or something. This is for my 91 accord 5spd.
Thanks in advance.

 

its your IACV / FITV

do a search.

 

Thanks

 

I got a similar problem my rpm goes from 1k down to 700 and the car would shake, do you think it the same thing?

 

also might be the EGR valve....a bad egr valve will cause a rough idle at stops and sometimes a "sluggish" feeling at low speeds but usually wont effect highway speeds

 

it was a hose that had come loose.

 

so it was a vacuum leak...easy fix's are the best fix's