It could very well be the engine mounts. I've changed numerous parts on my car. As I just hit 128k. I like to do preventative maintenance on certain components. Things that can leave you stranded. As my commute is 50 miles each way. So things like cooling and fuel delivery. I'm definitely due for motor mounts. So I'll put that on my to do list. But it's not really priority to me. As the idle issue doesn't concern me as much. And the car runs well. I wish I had a definitive answer. Would I like to fix the issue. Yes. If I knew for sure what the problem was. No codes for me in ista as well.
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