My truck's check gauges light comes on, makes a ding noise and the oil pressure gauge goes to L when I slow down and come to a stop. It will fix itself after pressing the gas and driving. The truck isn't showing any codes but I was told to try and change the oil pressure sensor. That was done this morning, but didn't fix the issue. Any other ideas??? Thanks for any help!

 

If you changed the oil press sensor and STILL have the issue

STOP STOP STOP driving the truck UNTIL you can verify with a gauge your oil pressure.