2004 nissan sentra spec v 2.5L

the idle revs up and down when car is warm its idle is normal when it is cold ive change the idle control vavle and both 02 sensor i have no vaccum leak what can i do now any answer dont want to go to dealer

i have a hard time reading and writing information that has no capitals or punctuation i have too much ambition and am a conservative i will try my best i dont know if you are the original owner your car may be subject to a volunteer service campaign kinda like a recall to have the power valve screws replaced as they have been known to come loose causing unstable idling loss of power mil lamp illumination i would contact a nissan dealer to see if it applies to your car and if you dont know whether or not its been done it might be free since its a voluntary campaign