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I bought my project big block 454 Blazer but the previous owner made a mess of the engine bay wiring. I'm attempting to get the original gauge cluster working but have run into a couple problems. I found this Oil Plug connector down by the bell housing and I believe all I need to get the oil pressure reading is to hook this up to a new sensor. This is a two prong boot connector but has three wires coming from it. The previous owner cut the middle wire (from somewhere) and I can't find any lead that would match up to it. Does anyone know where this middle lead is supposed to go?
1981 K5 Blazer Oil Pressure wiring
