[hagcam]

I had the same problem on mine this past summer on my trip to Ontario Canada. I was very lucky in that mine failed while I was in a friends driveway visiting. When I started the engine the yellow check engine light illuminated, followed but the red stop engine light, and then text on the pro driver stating zero oil pressure. The oil pressure gauge showed that it was fine. I bought a new sender, and installed it. I have been told that when this fails if you remove the wire from the sender, the yellow check engine light will stay on, but the engine will continue to run, if you need to drive the bus.
I bought a spare on eBay for $40, and now carry it. I have heard of this failure at least 4 times. I think a spare is a good thing to carry. I paid more than double the $40 for the one I bought on the road.