The 03/04 cobra crowd is in for a real treat here shortly, im currently working on flex fuel support from within the ecu, no more tune changes needed when going from pump to e85
since im writing the closed loop wideband control i was just going to infer ethanol content based on the global fuel correction shift, well some folks didnt like that idea so instead requested i write code to use a flex fuel sensor instead
You simply mount an inline flex fuel sensor in your fuel line, then run it to an unused pin on the ecu, enable the flex fuel code in the ecu and off you go
fbgi0 isnt so much a problem cuz theres bunches of free rom, the cbaza cars and 03-04 maueauders / crown vic / luxury fords both suffer from no free rom so i have to make the code compact and portable yet robust enough and in depth enough to be fully supportive, i actually started the code originally on gufb, ported it over to fbfg2 and then over to cbaza and now fbgi0, so its been through the paces lol
I have no eta on it, i just rewrote the logic last tuesday so itll be a bit, its all part of my 2 step and meth / n2o and wideband CL code so its a package deal. Ive highly considered using hego2s input with a programmable wideband set to output full range at 0-1v but thats not ideal since I use AEMs which arent, when i figure out how i want to implement it then ill proceed, its nothing difficult just time consuming
If anyone has any thoughts or suggestions post it on my forum