So I started my car this morning to let it warm up. Notice the oil light on, so I shut the motor off and top off the oil (it was down to the bottom "empty" hashmark). Start it back up and the light is still on. Dash oil pressure gauge reads 0. remembering I replaced an oil pressure sensor for a similar issue when I first bought the car, I decided to head to work as is. Well, the DIC gauge counted upward from 0 to 40, in 1 lb intervals, as I was driving. After about 10 minutes, it hits 40 psi and stays put. 5 minutes later, when the engine has reached operating temp, the gauge shoots up to 60 and starts bouncing around as it did before there were any problems.
At this point I concluded that it was a faulty sensor.
Well then I leave work 10 hours later, and it goes through the same process. Starts at 0, counts to 40 and stays there for a minute. It then shot up to 60 and started acting normal again. Now I'm starting to worry.
I will be checking the pressure w a mechanical gauge as soon as I can, but I'd like some input if anyone has experienced a similar situation. The fact that it happened twice exactly the same way is making me wonder.
Thanks in advance.