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rough fast idle on 2014 Cadenza

3816 Views 1 Reply 2 Participants Last post by  Kia-Driver
still having trouble with rough fast idle. Had new injectors put in this past winter but fast idle still is rough. Anyone have a fix for this other than injector replacements?
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I occasionally have an issue on my Sedona with rough idle - I run a can of seafoam through it and it clears up.
I don't believe I've had rough idle on my Cadenza, though I occasionally run a tank of premium fuel through it, so that might be doing the same thing as the seafoam.

Since you've already installed new injectors, it must be a different issue than what seafoam would fix.
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