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70 Posts
Discussion Starter #1
2001 Cobra

After months of sitting in the box, I was up to midnight trying to install my Lunar 4163 Fuel Pressure gauge. I hooked the "black and white" wires straight into the fuse box. Lights work. The "red" wire called for a 12v supply. I tried a couple of different 12v sources in the fuse box, no luck. The gauge will not give a reading. Do I have to find a wire that is 12v constant through cranking? :confused: If so, where do I find this source.

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