temp & oil gauge not working

thanks for everybody's great input. well today with the help of a service manual I traced the 2 wires ( oil pressure & water temp) thru the bulkhead (still blinking) up to the round connector that fits into the circuit board for gauges. the wires did blink as I tested them in the round connector. I have not pulled off the connector BUT what I did not see was the usual voltage limiter anywhere. the only device I have in that area is a round condenser looking device that has 1 wire that plugs into the circuit board next to the water temp gauge and it has 12 volts when the key is on. is this my voltage limiter. looks nothing like all the squire limiters that I see with 2 wires.