The previous posts do not give me a "warm fuzzy"!
I am dealing with the same calibration issues with my EIS. I have started with the numbers that were given to me by Sandy at GRT. It is indeed a frustrating process. I started the process by writting down the numbers on the display when the tank was full. (
Actually, it appears that although Vans states the tanks hold 18 gallons, mine are holding more like 20 gallons.) Then I emptied the tanks and wrote down the number on the display at empty.
After getting these numbers I called Sandy and gave her the numbers. She then gave me the AUXSF and AUXOFF I should set my EIS to. These were still not quite correct as they were reading incorrectly when empty. The wrong time for a fuel gauge to be inaccurate! I have adjusted them a few times already but still cannot get them to read accurately when empty.
Just a note on the numbers. Sandy informed me when she gave me the AUXSF/AUXOFF numbers to only adjust the AUXOFF numbers. She also told me to only use
ODD numbers when adjusting the setting.
This fuel quantity issue is not the only fuel reading problem I am facing. I also am frustrated with calibrating the Fuel Flow on the GRT EIS/EFIS. This is done with the
FloCal and, since I have a return fuel line with an additional Red Cube sensor on it, the
FloCalR.