Thread: Oil Pressure Gauge Help???

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Originally Posted by kbmwgt

No adapter on a 390.....Oil Sensor is screwed to top of oil filter housing.
Plugged as in the oil access hole is blocked I doubt it because yes the idiot light did work (meaning it wasn't on) prior to this project.

I understand that the sensors are very prone to be bad, even new, but I have gone through 3 already.
I know the gauge works because if I ground it the needle pegs. I'm also guessing because of this I also have the correct low voltage needed from the volatge regulator.

Am I missing something?

I believe you are missing the question, from what I have highlighted, you are saying you are using the sensor for the idiot light . Read the name of the manufacture from the gauge, order the sensor. If you cannot find the name upload a picture of the gauge . Real sure someone here will be able to id it.

Not sure but if I were a betting man i would guess there are 3 to 4 sensor manufactures and there is a good chance less the that. Electrical oil pressure sending units have been around for quite awhile and are reliable overall.

You know the gauge works, question are you grounding it using the wire that is attached or will be attached to the sender? If not use that wire it will prove the integrity of the circuit . Just one more thing, most gauges work on the full 12 vdc if we are talking SW or Autolite style .