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Discussion Starter · #1 ·
I have a 2016 LX with 101k on the 2.4L engine.

Overall, the car runs very well, but especially when cold, the engine will idle somewhat unevenly. It has never sputtered or stalled, but I can see the needle on the tach wavering. I have recently replaced the air filter and all four spark plugs. Thinking my next move is to clean the intake valves.

Any thoughts?
 
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