Without beginning another debate on whether or not it works I would like to know where RT owners have fitted their ecotek valves. Mine was fitted on the hose between the inlet manifold and the vaccuum check valve (hose goes to the bulk head next to the throttle cable). Is this correct? My garage blamed it for making my car idle poorly, they said once theyd covered it up the engine ran more smoothly. I can believe this, but I thought it might just be in the wrong place. Can I have some opinions please.