Ok I've had this for a while but was Curtis. Does anyone know why the start up protocol is j1850. The manual says that gm and Chrysler, just curious if it matters.
Also i hear guys talk of how they made the mpgs more accurate at each fill up. I can't quiet figure out how. When i hand calculate my miles or it seems i get 1 or 2 better than the gauge says. I've also noticed that for every mile i rebel my counts it as .9 or so. I have larger yours so i figured that would new the cause but I've heard that it is the gears not yours that cause this.
Can anyone explain this better for me.