Rich at Idle - First time with Flex Fuel Enabled - LS3 - E38

[ngc1068]

Hi, Please forgive me if this has been asked before, I tried searching several combinations of keywords without success.

I have a 2016 Chevy SS, Whipple 2.9L, LS3, Headers, M6. I installed Flex Fuel sensor today, and loaded new FF tune.

I put about 2 gals of E85 on top of 13gals of E10 93 octane, I expected this to put me at about E20.

Please see attached Tune and log at idle. I have the WB set to Lambda. FF sensor seems to show correct Ethanol concentration, it slowly climbed from 9.6% to just below 20%.

What concerns me, is after awhile the idle lambda showing on WB EQ Ratio starts to drop less than 1.00, and ends up 10-12% towards rich. Also no longer seeing the narrowband oscillating voltage. Its in closed loop so I would expect it to pull fuel with STFT and LTFT, and come back to stoich and see the narrow-bands start oscillating again...but this doesn't seem to happen.

Again, forgive me if I'm ignorant, is this normal? I'm using an AFE X-Series OBD2 for WB.

Thanks!

[ngc1068]

I think I found the issue. Values in Minimum InjPW table values were way too high.