i have read through a lot of posts on here and still have yet to track down my problem. cold starts it stays running but very rough for about 3-5 min then it runs fine. 2000 gt all stock except bbk off road x and cat back. brand new IAC installed cant find any vacuum leaks mass air clean good fuel pressure 35 psi new fuel filter new plugs running out of options here!! lol it did just start throwing O2 codes i think my MIL's went bad maybe but where should i go next i have a new ECU coming tomorrow for it. should i get new O2 sensors? i also read the the IAT little sensor could be bad i have not changed it. the car runs just fine at all other time but the first start for the day or if it sits for a few hours and cools completely it chokes and pukes for a couple minutes. please somebody try and help me!! thanks so much!!