I have a new 2018 model BDR with the standard tank and the awesome access hatch on top in the floor of the boot. Its got the tube-type fuel lever sender unit. The fuel gauge is very inaccurate and move around quite a bit during driving. The friendly guys at the Backdraft factory in Durban sent me a Fuel Gauge Wizard (
https://www.spiyda.com/fuel-gauge-wizard-mk3.html) to normalize the needle movement. They included comprehensive instructions to install it and I did the connection properly. However it does not have the desired effect. Needle movement is still about a quarter of the range during driving. Any advice?