As stated in the title, I'm having misfires in cylinders 1 and 4. BUT! Only when I am in any gear hovering at 3k RPM for a second or two. I have swapped all of the coils around, nothing. brand new plugs, nothing. I've got VCM scanner pulled up and it shows about 30-50 current misfires in both cylinders at the same time. I also can't feel these misfires either, car feels like its running just fine. I'm a little stumped. 2007 Cobalt Lt