Well I finally had the time and help of a friend and I hit vtec for the first time sat. night. Man what a feeling. I do have a question I have a vtec controller and It came with my ecu. It looks old but seems to work as far as controling the vtec crossover point. two questions? When I unplug the vtec controller I get and intake air temp. sensor code. I plug it back in it no code I have two turn dials on the controller one to adjust the crossover point and I guess the other is to adjust the IAT sensor. what will this do for perf. and I am running a B16 with a 90LS tranny and good Ideas as far as to where I should set my crossover point?