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I have a 2005 rxp with 50cc injectors riva ecu x-supercharger with a ET-137 wheel. I had a intercooler leek and messed up my throttle body so I got a used one of Ebay (like a dummy) with all the sensors it seems to work ok but it won't idle. so I took it to a local shop and plugged it into a buds and he couldn't calibrate the TPS. is it because i have a Riva ecu?? also if I were to get a maptunerx what tune would I use??