I have an RV9A with EIS 4000 and Sport SX EFIS that I use for a graphic engine display. I cannot get the fuel tank level, left and right to act right. The EIS does calibrate properly and displays fuel in integer form, but the EFIS display which is supposed to use the EIS data, shows fuel levels that are no consistent with those shown on the EIS, close, but no banana. Has anyone else struggled though this and could offer help?
Ed
Ed