I recently installed the synapse DV in my 2016 VT. It's installed in push mode with A and B Y'd together, then connecting to the same solenoid port that the oem BPV was connected to. Idle was rough and I was getting flutter, so I sealed the block off plate with gasket maker. Idle is still kind of rough, turbo flutters still and it threw a p2261 code this morning. It does hold boost, and gives a nice whistle sound. I'm not sure how to fix it, any advice here?