I need help trying to figure this one out. I drive a 4 cyl., 96' Dakota. I had an oil leak from the oil pressure sensor itself. Today I went to o'reillys and got a new one. When I got home it turned out the one I got from them was the wrong one. the nipple of the sensor that screws into the elbow on the side of the block was larger than the sensor I pulled off. I went back and they said it was the right one. so after looking at differrent sensors the only one that would fit goes to a 97' Dodge Daakota. I put it on, but the oil pressure gauge isn't showing the pressure now. any ideas?

 

"I put it on but the oil pressure gauge is showing the pressure now"
sounds like its working as designed

 

Sorry, i meant to say that the oil pressure gauge isn't working now. Is it possible that there are two different size nipples for the 96' 4 cyl., but oreilly's is only carrying the larger diameter sensor?