The right tank set up without a hitch. The left tank sender was manhandled trying to get it in place and was replaced with a new one so I don't know if it would have set up properly. The new one gets errant readings on the Dynon D-180. Tried what I call everything even jumped wires from right side and hooked up to the left sender. I have a feeling this may not be setup as a one point but setup as a multiple points sender that are not used in EFIS setup. The setup says to calibrate which I have done numerous times but it states it should take so many seconds to do so but I don't see any changes in the left blinking light to indicate a calibration was successful. The last attempt I made seemed to be going good until I had 10 gallons recorded on the 180 and then during the adding of two more gallons the resistant's reading dropped back down to original starting point. Any ideas would be helpful.