Bill i dont understand your statement actually. My question is simple now: does a tuner need a kr reading to tune a car or can they rely on a wideband etc.. to tune instead. I drive my car 95% of the time pretty easy with 0 KR, my goal is not induce KR unless i am specifically trying to look at certain pcm readings during the kr reading. Car will be driven to overkill with 0 KR and we will see what it comes home at.