2000 KIA SEPHIA
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RIEBED
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Hi I have replaced the wires/plugs (with correct gap),idle control motor, new fuel pump entire assembly, fuel filter as well as many other parts, the car still runs very rough-no check engine light is illuminated-any ideas?
Jan 16, 2012 at 2:46 AM
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RASMATAZ
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What's the problem? enter the question again seems like its been cut-off
Jan 16, 2012 at 3:03 AM
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RIEBED
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Idle is very rough-replaced wires/plugs/idle motor/fuel filter/new fuel pump assembly and many other new parts-still has a very rough idle-no CEL-do you have any other ideas what could be?
Jan 16, 2012 at 3:11 AM
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RASMATAZ
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Clean the EGR valve and see what happens

Go to this link for additional info: https://www.2carpros.com/articles/engine-misfires-or-runs-rough
Jan 16, 2012 at 9:37 AM