The auto electrician did not resolve the problem on fuel gauge reading error, in fact, he recommended to buy a new set of dashboard instrument panel, and it's very expensive. What I did is I pulled out my car from the shop and running with defective fuel gauge. Then I remembered the freelance auto electrician that I knew when my car broke down before. I brought my car to his little shop, then in a short period of time about 10min more or less, he found the problem... it was with fuel tank float, he repaired the float then it was done! If I followed the recommendation of buying a new set of instrument panel, the problem will still not be solved because the defects is not on that part. Through this experience, we better scout for highly skilled and known technical person to avoid wrong diagnosis...