Originally Posted by talvai
Maybe these are issues that are expecting with a bad sensor or no sensor installed. Car works fine regardless though. Will have to look into come spring time. Now its too cold to do anything.
If you have an Accessport or have other tuning capability, you can monitor barometric pressure, it should normally be in the 14.7 psi range. After having my TGV deletes and secondary air crap removed, a couple of the contacts in the valve connector broke off due to corrosion. I got funky barometric pressure reading that noticeably F-ed up the drivability. New valve w/sensor and all was well.