my shifter stopped working today,it will shift under a light load only,and it feels labored,the red and yellow lights flash when the key is turned on,and when the button is pushed,there is almost no noticeable change in rpm when the button is pushed at an idle (1100 rpm) when i turned the idle down to 800 rpm and pushed the button the idle will drop a little but not to much,do i need a new digi kill ?