OK, Yes I searched. We all know cleaning the IACV is one of the first things to do if having idle issues ect. I cleaned mine and thought I took notice of the orientation of the Diaphragm and large black grommet with the concave edge on one side. I was interupted and now am not sure. Is it rubber side of diaphragm and concave side of grommet facing into the intake manifold? Lots of threads say to get this right but none I could find tell you which way is correct. Thanks Phil.