Question about 2004 Kia Optima
This is a pretty broad description but i would have changed the camshaft sensor first as it controls spark more so when moving at higher rpms. That being said also check your spark make sure spark plugs are firing a bright blue spark no orange that is not hot enough to ignite vapor properly.
With all that would not hurt to check fuel pressure you can rent the pressure gage at autozone for about 150 and get it back when the tool is returned.
If i can elaborate more let me know if not i hope it helps could you please leave 4 thumbs up it really helps me help you all thanks
Posted on May 21, 2011
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Posted on Jan 02, 2017
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