04 6.0 cyc. 6 & 8 problems

[DIESELDUDE83]

I did head gaskets ,head studs, egr delete, oil cooler, new icp, new ipr new high pressure tubes,rebuilt heads and the sct3015 tuner. Truck runs great except at idle where she has a dead miss. scanner shows #7 contr, fail. and a few other codes. when I cut out each inj. my problem is with 6 & 8. Not 7. I switch 6 & 8 injs. with 2 & 4. And my problem is still with 6 & 8. My fuel psi is 65. FICM is 14v in and out & 49v. also my rpm is kinda all over. truck also has new crank and cam sensors. icp is good ipr good great psi everywhere. Could my PCM need to be replaced or flashed