I have just replaced my gauge cluster with a Si gauge cluster assembly. My previous cluster does not have a low fuel warning light, now I have one for the Si unit. Anyone has any idea whether is there any additional wiring needed for the Si gauge assembly for the low fuel warning light to appear? I am running pretty low now touching the empty mark once in a while on up-slopes and right turns, but at stationary, the needle floats just slightly above the red mark. I understand that even at the empty mark, there is still quite alot of gas left in the tank. At what stage usually and at what parameters does the low fuel warning light appear? Does the light activate from signal conveyed from the fuel gauge sending unit or the fuel gauge itself? Is it microprocessor activated? If additional wires are needed, what wires are they? (2 plugs, one with 10 wires and another with 12 wires) Thanks.