This reads like you have the start of a bad pick-up. However, to have both happen similarly lead me to think wiring harness or connections.
But #8 started on round 2. So, you either have stiction or wiring issues. The wiring in this case should throw a code for low circuit if that was the cause.
This will happen when you pull out injectors. Usually more is in the cups of the first pulled. Since you only pulled 2 out, this is where you would notice it.
Your injectors look like you have the start of some blow-by. Ensure it is not corrosion. When you install your injectors you must ensure you have no carbon in the cup, nor under the NEW copper seal and it is installed correct side up with the correct torque or you will see this happen. As well, you should also clear the cylinder. One problem that can happen is oil remains in the hold-down and prevents the bolt from getting to the correct depth at the correct torque. Even if you suck oil out the holes, you can still notice air or oil escaping while turning in the hold-down bolts.
Cmp sensor was replaced begining of this year. Ill check the resistance see if I have some chaffing going on.
I ended up pulling all 4 injectors on that bank, they all look the same- inj 4 looks like heat damage similar to when you heat up titanium and it gets that blueish color.
Even though the truck shakes like hell there was zero contribution codes. There was zero electrical circuit codes for injectors. The only codes I have- keyin ignition circuit, bus communication fault, fuel level sensor circuit low/high, and a prndl communication fault. These have been there for a while.
I will clean spool valves, replace orings/gaskets and see if that helps but I guess I still dont see how that would affect a warm miss.
To clear the cylinders... Remove glow plugs and ficm fuse and crank it for a second or two or do i need to manually spin the crankshaft?
Appreciate all your guys help
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2003 Silver 6.0L PSD CC/SB FX4
EGR Delete, Oil Cooler upgrade
Blue Spring & Banjo Bolt Upgrade
AFE Stage II Intake, MBRP Straight 4" Turbo back
RBP 6" tip
SCT Custom Tuned
Autometer GS series
BFG A/T 285s
Recon Smoked Cab Lights
Recon Interior L.E.D.
Recon 3rd Brake L.E.D.
Custom Fiberglass Center Console
Two 10" Sundown Sa4's, Hifonics 1200 RMS mono
Meyers 7.5C Plow