New O2 sensors on this setup, I do not know prior how it was running on the old tune, but after changing from a full exhaust to basically 30" resonated dump pipes off each header there seems to be a major issue here.
I don't know if it's related to the exhaust or something else, but cylinder bank 2 4 6 8 seems to sound great at idle and 1 3 5 7 doesn't sound so hot.
Anyways while it open loop it seems to idle ok, but as soon as closed loop comes in 1 3 5 7 bank will slowly advance to -40 trims while 2 4 6 8 bank will slowly go up to +20 trims.
LT trims are disabled.
Checked all grounds for solid contact (haven't' checked for any breaks in any ground) coils are good, plugs have been changed (1,3,5,7 bank were fouled, 2,4,6,8 look fine)
We have a wideband on the drivers bank and it's idling supposedly at right around 14:1 afr. We dialed in idle airflow idle spark and VE table at idle in open loop with adaptive disabled.
All i can think is that the passenger bank is correct and it's actually lean and needs fuel, but something is up with injectors or something causing it to run rich on drivers bank and as it continues to try to pull fuel out of it it doesn't' matter because something is up on that side.
What is you guys take on it?
setup is Trickflow heads, 236/242 .615/.615 111 LSA cam, 1 7/8 ltubes, fast 102 intake on an 01 LS1
And yes, this cam outrevs the motor, it makes peak power past a safe rpm for the bottom end lol.