Hondata

I currently am learning to tune and come across what I think may be a problem. My short term claims engine requires -21 fuel delivery. However, my engine starts around 12-13 and idles around 14.7 after ECT compensation settles. Therefore, I don’t understand as to reason why it would claim such amount. Please help me, thanks.

Has this been properly tuned on the dyno?

Unfortunately no since no competitive tuners in area so decided to try to tune myself.

post the calibration as well as datalogs showing the issue.

If the tune is in closed loop and its pulling 21%, take 21% out of the map where your seeing the 21% rich. The short term trim should be zero. Or put in open loop and see how rich it actually is.