I know problems with the oil pressure sensors have been covered thoroughly and I've read quite a few of them but I have a question for you all.
First the basics, it's a 1998 4.0. Previously I had been having an issue with my oil pressure gauge fluctuating so doing some research I found out that changing the pressure sensor was an easy fix. I changed it and it was good for about 8 months and now the problem was back. Today I picked up oil, a filter, and a sensor. Once everything was changed I started up the jeep and the gauge read zero with a check gauge light on. Checked the connection and tried again, same problem. Changed back to the old sensor which was giving a reading but was fluctuating and now it also says zero with the same check light. Removed the sensor and cranked engine to verify there was oil pressure and of course there was. I know the engine is full of fresh oil so I'm kind of stumped as to why it now shows zero for pressure on both sensors. Any ideas?