The previous owner of my 89gt put white face guages in, but failed to replace the gas needle right. It reads way up high, so I have no way of knowing how much gas I have until the gas light comes on. So I ask, when your gas light comes on, what line is it near, 1/4, 1/8, ect. Is there any way to make it accurate again without draining the gas tank, or is there an easier way maybe? Like filling it FULL, and if so shere does it read at a absolute FULL tank? I have the same problem with the voltage gauge, there does it read normaly without headlights on, accessories, ect. I also have underdrive pullies if it matters for voltage reasons.