On another note, yesterday I took the JDM equal length exhaust manifolds off my GT to see if they were the source of my chronic overheating during 4th gear pulls. I had a Mishimoto Alu MT radiator installed after a Grimmspeed 160* thermostat and water wetter didn't lower the overheating at all.
So, revert back to stock exhaust manifolds and now my af/r gauge miraculously works after 4 months of what I thought were af/r programming issues in the LC1 software. So, my current tune was done with that manifold and O2 sensor not doing the job.
Looks like I'm getting a new tune.....