I just decided to start my own thread instead of adding to the "flex sensor not accurate one".
I have read some conflicting info on what to change and what not to change when adding E. I know some say to alter the "afr stoic table" if your trims are off. Others say that if you need to do that your injector data could be off. I'm 99% sure my injector data is correct (ID1050s) and I'm still lean (especially during cold start). What I can't get through my novice tuning brain is that if I change the stoic table isn't the fueling still going to be lean, but the trims just won't show it as much?
So I already re-did my maf/vve on pump and I put some E in the tank (E58ish). Like previously, I'm now running a little lean (I haven't altered the stoic table yet). The attached log is a "cold" start and now I'm very lean at idle with the addition of E. Would changing the stoic table help correct this or would I look into alter OL alcohol tables possibly? During the cold start/driving it doesn't drive the greatest due to being lean. I also attached a short drive that i did with a couple bring PE pulls (not WOT or anything). Lambda doesn't seem to be terribly off, but I'd prefer to get that closer than it is
2.35 pulley, ID1050Xs, CURRENT TUNE-FLEX FUEL.hptlean OL idle with E.hplfirst log with E 2024.hpl