After raising it up above 170, the engine did cool off to about 163 while I was making the adjustments. I did notice that after restarting at 163 it did keep the idle slightly higher then my target 675 idle. I also noticed that shifting into gear the idle would drop low and very slowly came back up to about 650 (very rough though). However, I would shift back into neutral and the rpms would go even higher and NOT come down. I took a datalog of this:billr wrote:Try raising the last (highest) temp in your "closed-loop idle target" up higher. It is presently about 143F, under where you are idling, and I'm not sure if MS sets the target flat at that last value from there on, or extrapolates the target to a lower rpm based on the preceding shape of the curve.
Will