Well, since I started checking (due to less than expected fuel economy), and found I am running a -30 to -40 timing advance, WTH? Reports other vehicles timing advance correctly, any IDEAS?
Also, the fuel trims report -15 or so LTFT at an idle, if you are driving it is better, I am assuming it is over fueling at an idle and the O2 is cutting it back (or the O2 is bad). Or maybe there is a low speed miss at idle? Am I correct in this assumption?