To answer my own question
I found the 2 temp sensors and replaced them the dash gauge seems to be working better more in line with the odb reader for live data. Still truck runs great from Idle to 45 good throttle response can ease off and go slower no problem, When I get to 45 or better when I ease off throttle its like it just wants to drop to idle.
Still no Codes but on hard acceleration a lot of black smoke even when I drop out of od to passing gear. Truck shifts fine through all gears.
Waiting for my manual to arrive so i have the proper books.
America Love it or Leave!
1999 Cheverolet K2500 Suburban 4X4 LT
Hybrid Diesel/Vegetable Oil conversion by me
In Memory of My Fallen FDNY Brothers
Never forget Never Forgive