rough cold idle - Kia Forum
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post #1 of 4 (permalink) Old 01-20-2013, 04:22 PM Thread Starter
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Default rough cold idle

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 ?
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post #2 of 4 (permalink) Old 01-21-2013, 09:42 AM
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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 and access all of the service manuals for your vehicle.

Vehicles: 06 Sedona EX, 237k miles---06 Sedona LX, 258k miles---07 Optima EX 2.4L, 96k miles---13 Optima Hybrid LX, 19k miles---09 Amanti, 88k miles---14 Forte EX 2.0L, Prem+Tech, 89k miles---11 Sportage EX AWD 2.4L, Prem+Nav, 88k miles---15 Sedona SX, 4k miles

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post #3 of 4 (permalink) Old 01-28-2013, 12:30 PM
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I would bet its the throttle position sensor.
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post #4 of 4 (permalink) Old 01-28-2013, 03:38 PM
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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!
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