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I have a 99 civic dx with a mini me swap and a small t3 turbo set up with 450 dsms. I had the thing tuned on the dyno and it put out 230whp.

I recently picked up a wideband and tried to tune the part throttle map. I started off by setting the narrow throttle, exactly like the wide throttle. It showed that I was way rich from 1k- about 3k (approximately 8.95-11) so I dialed it down a few notches did a 4th gear pull on the highway, and checked the data and the afr curve was relatively the same. I am at the point where I can't lean the injectors out anymore. Am I doing something wrong? should I mess with the fuel pressure?

I also noticed when I am driving normally (very light on the throttle) the afr curve is different, even though I have the same fuel settings.

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ttt