Get fuel dummy
My factory low fuel thermistor quit. I followed on replacing it with the honeywell 1k thermistor. Replaced it. Did some open air and then submerged testing. Great it works. Went for a nice little ride. It was about 55 deg out no problems. Go out for a ride when it is 70 with a full tank of gas and my low fuel light is on. I have taken the tank on and off about 6 times now making sure that it not touching anything. I have even added some PTFE tubing to make sure the income power cannot touch any ground point. It is a 2002 VTX 1800S2. Dash dummy light is LED factory not regular light bulb like the C and F. Does anyone have any idea why it works for C & F models but not the S?