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Intake Valve Cleaning?
I have been reading numerous threads of people trying to clean the intake valves's and it makes a hell of a difference when you do.
I am replacing my spark plus and while doing that adding BOV and CP next week. Now I do not have any "issues" with the car but when its idle, it seems like the RPM's jump. I am assuming its because of the spark plugs (80k on an 07 e92) have never been changed, I bought it at 58k, so I dont know before that
Now my question is, you think the intake valves being dirty can do that? I do not know if they are but I am just guessing.
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