Does this plastic thing plug into my oil pressure gauge? See 1st picture. The second picture is of the back of the oil pressure gauge. My oil pressure gauge stopped working a while ago. About the same time as I was doing repairs to my heater controls and I think I might have bumped something loose. It's in the same area. I don't want to plug it in since I'm not sure if it goes there, and I done want ruin the gauge.