hi,
(L83 engine 5.3 on sierra 2016)
for activation of the fuel flex, I don't find full explain and it's my first use of hptuner, I need to find how to from forum, youtube... so I dit this and I would like to know if I am fine:
-engine-fuel-fuel sensor: change "virtual" for "sensor"
-engine diag-DTCs- P0178, P0179, P2269 : "activate" and "MIL on second error"
-stoich AFR vs e85%: all are 14.10, change for:
0=14.67822
6.3=14.32227
12.5=13.96582
18.8=13.60938
25=13.25244
31.3=12.89648
37.5=12.54053
43.8=12.18359
50=11.82764
56.3=11.47119
62.5=11.11426
68.8=10.75781
75=10.40186
81.3=10.04590
87.5=9.68896
93.8=9.33252
100=8.97656
and min and max e85 ratio was 10 and 10, change 10 to 100%.
put the alky sensor on the pin 38, (already wired, white wire, no stock alkysensor on the truck, it's a gas truck, cut it to put the sensor on it.)
check on spark advance, look different on gas or e85, so I thinking it's already fine.
after all of this, it work fine, show 74% of ethanol, stft near zero, a little +,
so I would like to know why I have allready a wire on the pin 38, if min max is better 0 to 100% ? (let 10 because set to 10 is set for gas), and if I need other setting.
thank you.