I installed a superchips tuner on my 2001 continental with 44k and all is well and good except when i am coasting downhill at slow speeds the transmission hunts between 1st & 2nd. does anyone here had the same experiance? any fixes? I am kinda suspecting possibly the throttle position sensor may not be telling the trans I am not on the gas. or possibly vehicle speed sensor? but i am just guessing here. otherwise the car drives great.