since now it is getting the full voltage reading for the idle ... once it is steady .. use the screw to bring it to 850 or whatever it is for NA You should have cut the old connector out and replace them, and just clean the injectors pins .. from my experience there is no way to really clean the connectors, no matter how clean you think you got them ..
The trouble with doing something right the first time is that nobody appreciates how difficult it was. PLEAZURE in SD