I have a 2.0 coil conversion hardwired in. I am getting a weird intermittent ground issue on cylinder 6 only. When I use the old style RS6 coils which ground to the heads in all coils, I don't have a ground issue. When replacing the coils with the 2.0 coils, I get an intermittent open to ground only on cylinder 6. No misfires by VCDS. If I replace the 2.0 coil with an RS6 coil in cylinder 6, I still get the open to ground issue. I would think that would eliminate the ground issue as it's not present when I run the RS coils in all cylinders.

Any insight on where to start looking or why this might be the case?

Thanks.