[Radar]

Just to add to this...

At a lot of places you don't need to run 14.7:1. Highway cruise you want to run ~15.5:1 for MPG sake. Any more rich than that is a waste really. In theory, you could run even leaner (watch EGT) since most of us don't have a cat. Too lean and you would melt it.

As for tuning while under load, you might want to change the limits IN boost, which is the two boxes in the top of the "LAMDA SENSOR TARGETS" window. You don't want the MS to inadvertly overshoot something and run excessivly rich or lean while running in closed loop.

I know the "lumpiness" variable is there, but that is only for autotune. If you are running an EGO authority of say 10% or more, if something goes askew, MS could end up "autocorrecting" you way lean.