FiTech EFI Tuning Forum

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WOT going lean but not every time

i have the fitech 600 runs great till you go wide open started doing data logs found it was going lean at wot. I adjusted the fast accel and acc.max and gain and got it a lot better went for a ride yesterday first 2 logs were perfect and the 3rd one it fell on it's face it went lean again . the one thing i fond on the data log was a warm up percent was diffrent on the 3rd log the fiirst 2 it was 1.6 and the 3rd one it started at 1.6 and went to 0.  I NEED HELP THANKS.

Aurie weaver

What was your coolant temp in those logs?