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closed loop 02 sensor bias


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hey guys, as i do alot of highway kms.
wondering if its possible to make my NA+T run slightly leaner at cruise. 

from it says decrease for leaner < increase for richer. >
does anybody have tried numbers to get it run slightly leaner (have tried BF xr6t an FG xr6t, with no change to my AFR on my wideband) 

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  • 2 weeks later...

Hi Mate , I tried this and it worked grate . But I had to adjust the breakpoint by about 20 % . Otherwise it would hold the low slope and cause a lean out and afr warning on my gfb3 controller. Since gone back to stock . Just muck with the o2 offset number in fields that the rpm would be in cruise first . Then do some partial boost pulls with an af gauge and adjust the breakpoint . 
regards Graham. 
ps I’ll get to look at your vct overlap . On holidays now so have time ! 

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