Dino is going to be sending me his DIY-WB o2 controller soon, so i'll finally have the oppurtunity to copy the PCB and build my own. (the guy wouldn't respond to my e-mails for buying a PCB from him so i'm just going to fabricate one off of Dino's after i build him his)

Bill has slowly been convincing me to get a Mega Squirt, or for those of you that don't know it's kind of like the 034 EIC but it's designed to controll any type of injector - high or low impedance. the only thing that i don't really like about it is the fact that it only really controlls 2 injectors via a batch firing mode, instead of sequentally.

i've been thinking... is it at all possible to link some sort of wide-band oxygen sensor (in this case, the DIY wide-band sensor) to an 034 EIC or a Mega Squirt to have it learn and perfectly tune the fuel curve in open loop by it's own? for example... i could set a goal like this:

RPM: 2000 4000 6000 8000
A/F: 12:1 12:1 11:1 11:1

or something like that... the DIY wide-band would output raw A/F readings to some type of injector controller (along with MAP data, RPM, IAT, and crap like that but i'll deal with that later), and the injector controller would say "ok, the A/F ratio is suppose to be 11:1 but i'm seeing 10:1, i'll narrow the injector pulsewidth by Xms every 500ms or something until it's on target. then i'll remember what the final pulsewidth should be at this paticular RPM for next time."

this seems like a really good idea to me in which the car would basically tune itself perfectly in open loop. any comments?

2016 WRX STi Limited (current)
2001 A4 1.8tqms (donated)
1991 GVR4 #1933 (sold)
old.dsmregistry.com/detail.php?carid=218 (dismantled)