hi guys,looking for some help. when i cold start the bird it idle's higher than it used to, around 1400 rpm's and won't go down even if i tap the gas.. i did some searching and tested the iac.started it up and pulled the hose off of it. engine died out, which from what i've read is supposed to happen. could it be the TPS? or something else.car drives runs fine otherwise.thx in advance.