Does the gas gauge indicator still need to go through the old computer or can I run it straight from the sending unit to the gauge? I'm not getting a reading and I'm trying to decide if my gauge is bad or if it's wired wrong. I have one side of the sending sensor grounded and the other side is going direct to the gauge but I still have no reading. I've tested the wires and looked them up in ALLDATA so I know I'm on the right ones but still no reading. Anyone?