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Did a quick datalog and data from 5000 to 6500 rpm. The average air fuel (New) is 10.85 while the air fuel old is 12.5. My question is air fuel new require a correction factor? My car seems to run well.

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I'm curious why the correct transfer function hasn't been implemented so that we don't have to convert AFR values. AFR old is nearly a point lean as compared to actual in the ranges we're interested in at WOT, and AFR new from what I have been able to tell is a few decimal places rich compared to actual. I take it implementation isn't super straight forward for you guys?
 
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