just bought an accufab dual 65mm off a friend bc he was having the same problem. it will sit and idle fine but when it comes down off a rev it will hang between 1200-2100rpms and sit there or go up a little, sometimes it will drop instantly but usually hangs up. i did not do idle reset yet but he did it 3times with no luck with it on his mach 1. im going to put my tps off my stock tb back on and do the reset but anyone have any other ideas???
