Alright, this has been happening since i got the car. Everytime i start up the car, if its still cold, the idle will surge, even when coming to a stop. The RPM's will drop, then rise back up, drop, then rise back up. One time it got so bad, that when i was at a stoplight, the car dropped idle so bad that the motor stalled...the light turned green as soon as that happened, had to pop it back into neutral and then start it back up....with a line of cars behind me. :nonono: :slap: First i took off the IAC, and cleaned the holy hell out of it....no avail. Then, i thought the TP sensor was the culprit...replaced it, checked the voltage, all good....still surging. Then, i cleaned the MAF element, still no avail. Then, i rechecked my CAI piping to make sure it was tight....still no avail! right now, i have no clue what to do. it seems like ive tried everything, but it didnt work. It happened this morning, as i was leaving my house...coming to a light, slowing down....did the surging again. it also happens when the car is warm...In park, i would rev the motor, and the RPMS would drop.....sometimes the car would die, sometimes it seems like it wants to, but just gains RPMs again...drop down, gain RPMS.....damn neverending cycle. Any ideas? Thanks guys!