ive got a 91 honda accord and it just started idling funny.....its fine when it first starts up but after about 15 minutes of ddriving and when i start coming to a stop the rpm goes way down and it tries to dye on me and i have to keep the revs up to keep it running ....could this be the idle control valve or something else

 

i was reading up on some other posts on another board and it seems the vss could be at fault with this also since mine is not working either......ill get one and replace it soon