I've got a 2004 Malibu VLX; the other day we were out wakeboarding and PerfectPass beeped and it said "Oil P". The oil light isn't on, but the manual needle jumps from 0 to maxing out at 80lbs when we give it throttle. If we stay at 10 mph or less, the oil pressure stays slightly below 80lbs. Any faster and it goes to 80. When watching the oil pressure needle it moves up just as fast, if not faster than the speedometer.
I talked to our mechanic, and he recommended going out once more and seeing how it does since the oil temperature is fine and the oil quantity is full. The only thing that is wrong is the pressure. Everything else is working as it should.
What's someone else's take on this?