i plan to activate lean burn and this program running.
with my oxy liar box.
here is another man with a liar box.
YouTube - EFIE Gizmo
it just offsets the OXYgen sensor so you can run 15.5 to 1 AFR.
warning you need one more part , another circuit that monitors the TPS, wiper pin.
if the TPS is not moving, then 15.5 :1 if you are accerating then this liar box,drops out.
It must, and i dont think his does.
the hard part is detecting loads, hills and such, you do not want to drive up hills in lean burn mode, "melts things, like pistons"
so use it only for flat crusing. and save big money. some say 30% (40mpg?)
I have a MegSquirt that will do all that and do it all PERFECT !
but this fix is fun too.
cheers.
Lean burn has lots of down sides, I did not say them all here.
i am not selling anything so only facts and theories. no lying thru omission.
eg: melted prescious metal in catcon.
pinging might happen if you get to aggressive. Bad !
As you can see he has a seperate AFR meter and a Scanguage II ,monitoring live MPG and AFR. about $300 worth of hardware there. and common.
I like his demo because he shows , a real car running lean and the proof all at once.
5 stars for a great demo !!