Fuel Gauge Reading

[DEREKCO]

Hi guys been off a while with major health problem (cancer) i need your help with my s2 i renewed all the clock faces putting plasma ones on (last year) just recently i noticed the computer was showing empty yet the gauge shows half full i followed the instruction on how to calibrate the computer to the gauge ie when full set gauge pointer to full and computer reading to 700 any ideas what might have happened its been fine i even took the tank sender unit out and the tank has fuel in it

[ManiacuV6]

Did you tried to calibrate the gauge ? Is simple : you put 35 liters of fuel to have half a tank and after that put ignition on. You have a short knob in the right of trip reset knob, and you take it out that knob(is pratically a cap ). You use an allen key and you adjust the gauge . Cheers!

[DEREKCO]

Fuel Reading

Hi yes i did that after i fitted the plasma gauges the car has been fine for about 18 months then just last week the computer started showing the tank was empty yet the gauge showed half full i took the sender unit out of the tank and its got fule in. Could it be the sender unit or an earth fault