In the never ending tradition of two step forward and three steps back, I was working on my RPM drop out at 6000 rmp (messed with seveal resistors to no avail).  As I was sitting on the ramp at idle for a few minutes, focusing on the RPM's I glanced over at the Oil Pressure and noted it was flashing as an alert and was showing almost NO oil pressure (4 or 5 psi).  I instantly shut down the engine. 

 

The engine appeared to be running fine before I shut it down.  I checked the wire to the back of the engine monitor and all was fine.  I also checked the continutiy of the wire to the sensor and it was good.  I started the engine again and it started fine and seem to run fine, however, the OP did not kick in so I shut it down again