L31MaxExpress
I'm Awesome
I have been intending to look at this for you. The tune that ran my Tahoe is on my old laptop at my mom's house, 100 miles from where I am at the moment. I used data from the Black Box and a 8.1L GMT400 tune to set the constants and tables up.Just filled up. My gauge sits at barely above 1/2 full with a full tank of gas. I've reset the trip meter so I can drive and see how long until it goes to full. Does anyone have the correct fuel primary volume vs level (HP tuners) Primary to sender to vol gal (EFI Live) data to make the fuel gauge work properly on a a truck with a 25 gallon tank?
The 3500HD front tank was the same tank and sending unit as a regular truck, thus primary tank volume and tables were correct. The output settings have to match the Tahoes fuel level gauge. I robbed those from the Tahoe's stock black box tune.