[raphael03]

Same here , but its random .

 

[armik123]

Did you try going to AutoZone (or similar kind of joint) and have them pull the codes? There's a very good chance that in situation like this there would be code stored in the ECM. That could shed some additional light.

On the side note, few years ago I had a similar problem on my truck and it ended up being engine coolant temperature sensor. It would stop providing accurate reading when hot, which meant that system defaulted to -40C or something similar. On the cold start that was not a problem, but on a hot start that would cause engine to flood. If that did happen, then I was in for 15-30 min wait before being able to restart the engine. Could be something similar.

Alternatively, this could be a vacuum leak.

 

[davedrivesody]

It's probably a bad IAC valve. The clue is that pressing the gas helps it to start. Doing so admits more air into the engine - a job normally done by the IAC.

It can be cleaned, but it's easier to replace it.