Hey guys, I'm thinking about having my tuner lean out my lower-load cells for some better MPGs, but I dont know what a safe number would be. Is this even a good idea? Hes tuned it for the high load but I dont think hes touched the low load cells and I feel like there some mpgs to be had there. Any help is appreciated. Thanks in advance.

I'm curious about this too, if anyone has tried/experimented with it... I'd love to see AFR maps.

The AFR maps aren't really going to help you out a whole lot. When you're just cruising, your car is in closed loop and is just trying to hit stoich.

AFR maps are for when you're hitting open loop. I suppose you could drop your open loop point so that it is active at lower loads, but it would be more hassle than anything.

If you want some better gas mileage, Hiboost has seen success in kicking up the cruising load timing. If you can get it to 44*, it seems to give an improved MPG. He has a thread on here (or was it EvoM?) I think.

Here we go:

http://forums.evolutionm.net/evo-x-engine-management-tuning-forums/442622-getting-best-mpg-during-cruise.html

The AFR maps aren't really going to help you out a whole lot. When you're just cruising, your car is in closed loop and is just trying to hit stoich.

AFR maps are for when you're hitting open loop. I suppose you could drop your open loop point so that it is active at lower loads, but it would be more hassle than anything.

If you want some better gas mileage, Hiboost has seen success in kicking up the cruising load timing. If you can get it to 44*, it seems to give an improved MPG. He has a thread on here (or was it EvoM?) I think.

Oh darn, I have the memory of a 60 year old man. I forgot again about close loop/open loop states. haha nevermind my post.

Awesome, thank you man.