[UFO]

I don't like the MAF twist method as it affects the MAF output across the entire load range, not just at idle where the EGR function is verified. It would be easy enough, given the temperature input, to switch the EGR in or out with a relay.

I hope I will have the opportunity to take another long road trip from Denver to Crestone. I got 51mpg on B100 with the EGR defeated. I may go again in late summer; if I do, I will re-connect the EGR and compare.