Stumbled across this by sheer luck, you go into great detail on how flex fuel option talks to the other tables. definitively learned a few things here and will be applying some of these techniques to my ecu.
Hey great content and thanks for such a good upload. I was curious though, why adjust the stoic point for the 10% ethanol content in 93 when you have a flex fuel sensor? Wont the sensor read 10% ethanol in the pump gas and then put you at 14.1 regardless, thus making the adjusted afr off by .6 again? I know this video is old, so not meaning to be nit picky or anything, but just for discussion and wondering others' thoughts.
So what I'm getting is that if you are already tune on gasoline and when you go flex fuel all you do is enable the flexfuel and it will automatic make it own flexfuel table and you won't have to return on flexfuel?
If your VE / airmass model is dialed in 100% on petrol fuel and you have the flex fuel sensor enabled no fuel tuning needs to be done. There is a specific cranking fuel table that needs to be set-up for cold temp cranking fuel based on flex content and the spark timing needs to be dialed in as well. A turbo application can also take advantage of higher boost levels that can be biased based on flex content.
Stumbled across this by sheer luck, you go into great detail on how flex fuel option talks to the other tables. definitively learned a few things here and will be applying some of these techniques to my ecu.
Hey great content and thanks for such a good upload.
I was curious though, why adjust the stoic point for the 10% ethanol content in 93 when you have a flex fuel sensor? Wont the sensor read 10% ethanol in the pump gas and then put you at 14.1 regardless, thus making the adjusted afr off by .6 again? I know this video is old, so not meaning to be nit picky or anything, but just for discussion and wondering others' thoughts.
Thanks for another great video.
Sorry for the late ask but can you run a gm flex fuel sensor on the aem infinity or does it have to be the aem flex fuel sensor?
Any flex sensor will work.
You do any remote tuning?
So what I'm getting is that if you are already tune on gasoline and when you go flex fuel all you do is enable the flexfuel and it will automatic make it own flexfuel table and you won't have to return on flexfuel?
If your VE / airmass model is dialed in 100% on petrol fuel and you have the flex fuel sensor enabled no fuel tuning needs to be done. There is a specific cranking fuel table that needs to be set-up for cold temp cranking fuel based on flex content and the spark timing needs to be dialed in as well. A turbo application can also take advantage of higher boost levels that can be biased based on flex content.
very good video!
Weird way to pronounce stoich but great video. Thanks
Not really, he pronounces it correctly
He sounds correctly to me ..