Title says it all. Been playing with a tune from the repository for practice as I want to disable flex fuel, remove the sensor, and put a fuel pipe into the lines. Want to make it like flex fuel was never there. On the general tab setting stoich afr to 14.68100 all across. Open loop tab set alcohol eq ratio to same as gas eq ratio, whole table. On the flex fuel tab, turning off flex fuel master, set default alc % to 15, min hz to 0, and max to 1 for sensor fail. Disabled the DTCs for flex fuel sensor.
Question is, am I going too far after just turning off flex fuel master switch? I modeled it after my personal 05 sierra 5.3 non flex fuel T motor, with the only extra being the flex fuel sensor fail parameters adjustment. My thinking is if e85 is never run, and most we'll get at pumps is e-15/85% gas, and if for some reason with the sensor disconnected and the PCM sees any frequency on that disconnected connector, it will default to a 15% alcohol content and would run the fuel table/stoich that is equal to the gas only one. Don't see how this could cause a problem, but not 100% sure it won't go FUBAR either.
Couldn't find that last bit in the search i did. Any takers on an answer?
Thanks in advance.