- Fri Apr 21, 2023 5:23 pm
#62573
Hello, I have a question about how the software works in regards to gasoline versus E85 AFR's. I've tuned my engine on gasoline and my cruise AFR's are close to stochiometric at 15 to 1. I had just filled up with E85 which put my alcohol content at 55 percent last night and I noticed my AFR's were reading virtually identical and the car ran perfectly fine. So my question is, does the computer adjust actual AFR's to make it compatible with the gasoline scale or am I over lean when I am showing approximately 15 to one on cruise and 12.8 under WOT with the E85?