Sputtering at Startup

[mustang462002]

When I start my car it dies. I start it again and it sputters. Finally I get to rev it and it comes alive. I just changed the crank shaft sensor. With gas prices I have also left it at E for a while. Could this be the fuel pump. Does it intermitately do this when it is dying. It sputters even with more than a 1/4 of fuel. Or is this the IAC. Oh and I got a check engine light. Does autozone check codes for free. Because pep boys charged me 20 bucks. I though it was a rip of.

Thanks

 

[fast97gt]

auto zone does check it for free but they dont give code definition, and half the time those people graduated from walmart. they really cant tell you why the code is triggered. but yea it does sound like to me a iac problem, but it could also be a tune- up issue (plugs) on you year car. but i would go to ford pay the money, and have them tell you WHATS WRONG.

 

[mustang462002]

Going to autozone then. I'm a college students so I'm really on a tight budget for a 30 dollar charge just to tell me what a code means.