Quote Originally Posted by Daveo91 View Post
Thanks for the comparisons, Dave. I think what I'm supposed to be seeing is the wider range of info the WB data logs are providing? I guess what I'm still not understanding is if we adjust the VE tables based on that info, will the NB closed loop system just wash them out and do what it thinks is correct? Another thing I'm not understanding is: how do we make adjustments to the areas that we DON'T want AFR to be 14.7, like decel, highway cruise, and PE? Aren't the adjustments we're making skewing everything towards 14.7?
I look at AFR's and BLM's as measurements. I consider AFR's more accurate then BLM's. Adjusting closed loop with AFR's is " same / same" as adjusting closed loop with BLM's. AFR's and BLM's are measurements. When closed loop AFR's are lean, add fuel to the VE Table When closed loop BLM's are lean, add fuel to the VE Table.

Course Tune / Fine Tune. Course tune is basically correcting the VE Tables. The computer bases the areas that we DON'T want AFR to be 14.7, like decel, highway cruise, and PE on an accurate Course Tuned VE Table. Fine Tune adjusts the areas that we DON'T want AFR to be 14.7, like decel, highway cruise, and PE.

dave w