car dies /runs bad when cold

[331 stang91]

So when I go to start my car it always starts then dies within a few seconds. Than i'll start it again and it will run, but untill its warmed up it runs like crap. Alot of sputtering. Any ideas of why?

 

[vristang]

Pull the computer diagnostic codes, that should give you something to go on...


My *guess* would be ACT/ECT.
But don't swap ANY parts out until you have at least run KOEO and KOER tests.


jason

 

[BigHairyMonkey]

So when I go to start my car it always starts then dies within a few seconds. Than i'll start it again and it will run, but untill its warmed up it runs like crap. Alot of sputtering. Any ideas of why?

my car always does this, as does alot of other members vehicles. I pulled codes as well, .. im started to think its the IAC. I just give it a little throttle until it settles into an idle

 

[331 stang91]

Thanks for the results so far I'll try them.