It is a shame GM were forced to remove LC from the E40 and later ECM's, I guess it's a double edged sword, save fuel (good) but increased emissions in LC (bad).
It would be interesting to see which is of more benefit to MPG, LC or AFM.
Consider the cost to GM, LC = about 100 lines of code in the ECM. AFM = lots of mechanical mods and lots of code in the ECM.
What if both picked up 2MPG :doh2:
