Rally dash oil pressure gauge issue.

RedFish said

No, That 3rd connector in the bulkhead was called wiper connector for several years, only because there were no other wires/circuits in it. When the reverse lamp switch moved from inside the cabin to at the trans' the factory took advantage of previously unused ports of that connector.
Anyway... It shouldn't have any effect on gauge operation.

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thanks I was looking at the wiring diagram and thought ill wire that up and see whats whatbut if it is isolated from the rest of it. I cant get over that brake light pulsing...its like the 5 volt signal to the oil sender not a turn signal flasher. Chances are i need a guage but i may need the boards also. What do you guys thing of the upgrade guage kits from herbs?