I dont know what happened, but I was driving today, and I glanced at my oil pressure and it was at the far left of the gague.

I looked under the hood, it doesn't look like anything is broken. and oil isn't leaking anywhere.

what could cause this?

earlier this year I had the same problem and it was just a bad connection. I just replaced it and it got fixed. But that connection is good now, so I don't know what to do. help please

First thing to do would be to take off the filler cap while it is running to make sure you have oil flow at all.

Second thing to do would be to verify the oil level.

Third thing is to get a new oil pressure sending unit.

Hopefully it will be one of these things, that is if the engine isn't knocking like crazy. If it is, well, you should know the rest of that story.:tapemouth