Ok, been doing some more testing.
I actually just snugged down my TB bolts a little extra. And checked all of my LIM and SC bolts to make sure they were Tight.
Now when I'm cruising or idling the ST &LT trims are fine, But......
When I let off the throttle the LTFT'S spike to +16.4 until I either come to a stop or give it throttle!????
Now I'm lost for sure! Lmao

I've been in contact with brian about another PCM and should have one on the way shortly. I'll post up my findings once I get it swapped in.