I acknowledge the fact that our Evos are tuned super rich from the fractory. I was wondering if I get an ecu flash from vishnu, works or even Safc to adjust a/f; would I be able to get more mpg since they lean out the car. My last car was a modded integra and I used to get 30mpg on that lil thing. Now with the Evo, I am only averageing around 23mpg even when I am driving normally.

 

I got a SAFCII and the MPG got better on the highway,, but not in town,, as long as I keep it off boost. the MPG is good for about 26-27,,,, remember it is an AWD car,, not as good as the honda front wheel drives for MPG

 

https://www.evolutionm.net/forums/sh...ht=closed+loop Read ShapeGSX's post.