Hey Mike... I'm experiencing this as well. First, check if you're still covered with Extended Emissions Warranty as this is covered. If it is covered, the usual fix for the P2015 is to replace the manifold motor assembly. If you can get that replaced under warranty, great. Either way, you'll want to google "dieselgeek p2015." There is a part you'll want to get to fix it this issue or as a preventative if you did have the manifold motor replaced. Installing the motor and/or the part is not a big job.
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