Ok, so I was on 4 cylinders (cylinder 4 and 5 missing) then I soldered in the PTU connector (old harness/new style PTU). Then I was up to 6 cylinders. Then an injector went bad (OHM'ing in the 30s) so I replaced it. Was running on all 6 until it got nice and warm, then Cylinder 5 was pretty much dead miss at idle (no change when I unplug the coil pack connector unless I was REV'd up to around 2500rpm, then you can tell the difference). Then I relocated the fuse box this weekend and now it is doing the same thing on cylinders 1 and 5.
I've cleaned all connections, swapped out the CAS, tested the PTU (haven't swapped it out) and pulled the coil packs to make sure they were firing (and they are), pulled the CAS and spun it by hand and all injectors are ticking and OHM'ing in spec) and ECU is code 55
I'm at a loss.... and getting very tired of this build
