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Hey guys! my 2011 TC has a rough idle when I come to a stop and rpms sometimes drop below 500 and shakes the car a bit. I bought it in April with 87k miles on it. I changed the spark plugs a few months ago and have cleaned the throttle body and MAF sensor twice. the spray cleaning seams to help the situation but ultimately would come back after a few days. So far it hasn't tripped up a check engine light so I don't know what it could be. I was thinking about taking it to a mechanic so they can run through the live data to diagnose the issue but I'm pretty cheap living in NY where I don't feel like being scammed by a dishonest mechanic lol. I've read it could be a bad PCV valve, O2 sensor, or MAF sensor but before I decide, Id love to get some advice from yawl. The problem seams common enough but cant find a consistent fix. Id really appreciate the help. THANKS! :)
 
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