my ka24de changes how it runs at times

[DetoxHer0]

I'm not too familiar with how things on the engines work I just kinda know the basics but I do know that my car will be running fairly good for like a month and then it just starts having an alternating idle and if I don't give it gas it will shut down from the idle going too low even for stopping at the light. I did find 2 vacuum lines exposed but I didn't know what they are for so we plugged them. it seems like it runs better with one uncovered but that can't be good im just stuck I want my car running good again the right way. I got this video to show where I think the problem is.http://www.youtube.com/watch?v...eddedany ideas what those go to and could that be the cause of it
Modified by DetoxHer0 at 4:16 PM 10/22/2009

[Shabbernigdo]

so do u have a vacum line hooked up to your fpr?

[DetoxHer0]

like i said I really dont know a whole lot...... whats a fpr

[Shabbernigdo]

FPR is your fuel presure regulator.