Originally Posted by
It Will Run.Maybe
I have a 5.3 bored to 5.7l. Gen3. LS6 intake, summit stage 2 8707 camshaft, DBC, 1 7/8 headers 3 inch out. Got 12613412 50lb injectors and aem 30-0300 wideband should be here by the weekend. I downloaded a 2002 tahoe flex fuel file and tried to modify as a start file.I want to be able to run and switch between pump gas and E85 like the factory vehicles with flex without having to change my tune between each. I have searched forums but cant find a clear answer. How do i tune for both? Do i have to start with pump gas in my vehicle tune it and then switch to E85 and tune a different section? Any help and clearification will be great.