Okay I know I am nit-picking now, but I am trying to squeeze out any other error I may be inflicting in my tuning process. It is a flexfuel vehicle and has enough ethanol content in the 93 octane to consistently command a 14.47 AFR (from the Stoich table) with the O2's instead of 14.67. I have a PLX M-300 using the 0.5/10 EIO in the config. I also jumpered a wire to another EIO with voltage and they are both logging 14.67 and 2.35 volts respectively. Confirmed "disco" voltage with meter as well as possible too.
If I am interpreting right, the commanded is taking into account the alcohol content represented in AFR to achieve Lambda and Lambda is Lambda no matter what the fuel despite different AFR's. Damn even when I type it, it sounds nuts. lol.
I am using the AFR% error for MAF and VE tuning with this setup. Should I make an adjustment to the WB config and/or histograms to bring it in line with the ethanol content or is stoich stoich don't worry its okay?
After the tune testing. WB is still registering 14.67 (2.35 volts) and commanded still 14.47. Same question above, adjustments to be made or ?
thanx in advance,
tomy