So after some looking around Ive seen some limited folk with some of the same problem im running in to.
Quick run down on what i've got.
86 c10 5.3 swap with 4l60
Medium cam 600ish lift 112 lsa bla bla bla
Amazon's finest sheet metal intake money can buy!!
Longtube's to x-pipe with some spintech 3000 series mufflers
Speedmaster dbc standalone harness
00 Silverado dbc pcm
ls3 injectors
2200 stall converter i think??
Maybe a few other lil small things but ya get the picture.. Mild build.
Problem is 02's are not sampling. They hang at 450ish mv with very little movement. 3-5 mv. Pcm will not go in
closed loop. Keep getting fuel system ol fault. I have ohm'd the loom from pcm to o2's with success. Both high and low
signal's are checking out. Heater circuit is fine along with the common ground. Was hoping someone-someone's have
had this issue and can point me to the fix!!