K so when I start my car and let it sit my idle sits at 600(normal) then drops to about 400 then jumps to around 1000 and keeps doing it about 5 times then will idle normal for about 30 seconds then does it again till it warms up! Or if I start it and just go it stumbles and cuts out like its not getting fuel or something but it will only do it once like it just needs to get it out of its system and its fine. I have replaced the fuel filter, TPS, and a new AC Delco pre cat o2. Any ideas?

Anyone have a idea? I hope its not hurting my car letting it do this when its warming up!

It may be the IAC try cleaning it with some throttle body cleaner also check the MAP sensors connection and vacuum line after that reset the comp.

Where is the IAC located on a 2001 2.4? And is the MAP sensor the one located on my intake tube?