[xspired]

2006 kia sedonna idles rough when cold started and spits and sputters under acceleration. Engine light is on,had checked at Autozone and was told to start with changing fuel filter. Any ideas ?

 

[GregsKia]

What was the code? Should start with a "P". I wouldn't trust exactly what they tell you at the auto parts store when it comes to diagnosis. If you provide the code, I will check it for you in Kia's code manual. You can also register at kiatechinfo.com and access all of the service manuals for your vehicle.

 

[06newowner]

I would bet its the throttle position sensor.

 

[mtaviator]

I had a torn air intake duct before that acted similarly. It was torn underneath where it was hard to see. It caused it to run lean at idle, which if I recall would be worse when cold.

Be sure and find out what codes it is tripping.

"Start with the fuel filter" = I have no idea, but I'm happy to give useless advice anyway!