Very interesting!
The first thing that I learned with my Ultragauge was that my car never entered DFCO. Except, I was wrong. In
http://ecomodder.com/forum/showthrea...tml#post391443, California98Civic told me how to detect lean burn using my Ultragauge. I did not find the information in the manual, but I did see that you need to tell it to detect DFCO, and I just realized that in
http://ecomodder.com/forum/showthrea...tml#post372073, SentraSE-R told me four months earlier. It is on page thirty-seven in the Ultragauge manual.
Please forgive me if you see me updating other threads with this information.
DaveLobi, this is some very cool research that you did. I never would have thought of listening to the fuel injectors!
Thanks for sharing this with us!