My RV-7 has a 4500EE, AFS Arinc, AFS 73101 gps, and Digiflight II VSGV autopilot. The autopilot will fly the plane very well in altitude hold and heading hold mode. It will climb and descend, and turn left or right just fine. BUT, when I try to get the EFIS bugs to control the autopilot, I get a climbing right turn, followed by a descending left turn. It will keep going right and left, up and down if I let it.
I have been thru the EFIS setting and the autopilot settings several times, still does it.
The Arinc power LED is on.
I am running out of things to check. ANY IDEAS ??????

Thank you,

Gary