here is my exact set up, i have a y7 block with a y8 head, intake mani, ecu, and a b16a throttlebody. i am throwing P0450 and P0453 which is fuel tank pressure sensor high voltage, i have read it caused from the ecu swap and such, how do i fix this. also is it true you can just ground a wire to get rid of the knock sensor code aswell?? also every once and a while i will throw a code P0505 which is idle malfunction. i will throw no code and my car will jump between 1000rpm and 2000rpm back and forth-thermostat or car over heating maybe. i need some help to get my pride and joy running good. thanks for helping if you can.