Stoich for the actual fuel in the tank is what? 14.52ish maybe for E-10 (if it's actually E-10)?
Along with playing with SoundEngineers advice on tuning the Cylinder Charge Bias and trying to retune MAF and VE, I'm starting to feel a quart low here!
So I have questions regarding Commanded AFR and AFR error.
After logging with my new wideband my Avg. Wideband AFR Error does not match the STFT AFR Error when re-enabling the trims, the wideband will be -2 or -3, STFT's going + and the car starts running bad. And yes I've read here it's best to tune the low end with only STFT's anyway. I see why.
Can I simply change the PCM's stoich from 14.62857 to say 14.3 to lower the closed or open loop Commanded AFR to try to match E-10 fuel so I can use the wideband exclusively?
AND more importantly is there a way to maybe alter the voltage range/afr range or something in a custom "user defined" wideband pid to match (or hopefully get close) to the mystery E-10 fuel? If so could one of you super experienced guys explain how I could set that up and do calc's for a desired stoich AFR for my wideband?
I really do appreciate any help on this. Anyone who finds this tuning thing easy must be a genius!
Thanks, Bob