me and my strange ideas (mpg gain idea) need your input

[3100]

this idea will not work deleted by 3100

[skeeter123]

My first thoughts are that all of those parameters (brake switch signal, IPW, etc) are inputs to or outputs from the PCM; and that it's surely possible to develop a modified PCM "flash" that would at least claim to improve gas mileage. Certainly DHP and others claim to provide xx amount more HP with their flash-upgrades. I'm sure the OEM spent a lot of time tweaking the algorithm, but they answer to many masters, not just fuel economy, and even when they try they're required to deal with the govt-designated test course, not the reality we face everyday. I'm sure DHP could offer a "green" flash for the after-market, to increase gas mileage/reduce emissions.