Oil Pressure I just bought a 03 Ultra Classic, when bike is reved or we are riding, the oil pressure gauge is around 32, however when the bike is @ idle it drops way down. What could this be? The gauge, the oil sending unit, or hopefully not the pump? Have you ever run into a situation like this?

Oil pressure on these bikes is around 30 PSI at 2500 RPM or higher when fully warmed up. This will take 20 miles or more. At idle on fully warmed engine, pressure can be as low as 7 PSI depending on oil quality. It should however increase to around 30 when reved up. You did not specify where your oil leak is for me to comment on.

You have oil pressure and the gauge is working and no noise
that's great! Only worry if the gauge stops working.
cruise- on! Happy trails!

Change the wires around. I had same prob on my 94 flhtcu. Now gauge works properly and light doesnt come on.

possibly a plug oil filter or screen

The oil pressure is fine. It may go lower once the bike is at operating temprature.

Use an ohm meter to check your sending unit. Disconnect the wire from the front of the sending unit. Put your meter function switch in OHMS, R X 1 range. Put one lead to the stud where the wire came from and the other lead to the engine. You should read zero or very low resistance. Start the engine and you should read a very high resistance. If not, your sending unit, oil pressure switch, is bad. Other wise, you may have a problem with the wiring running from this switch to the gauge.

If your engine has no oil pressure, your tappets would be making a very loud rattling noise. Kinda like a tin can full of rocks. If your engine is running normal and quietly (mechanically) you have oil pressure.

Good Luck
Steve

Your Bike is a dry sump system oiling system which simply means that the motor needs to be revved up to get oil to the top of the motor. The readings that you see are actually normal (look closely at the gage and you'll see that you are actually are around 5psi at idle and in the 30psi range while moving). Great Bike!
Also you might want to checkout the free website for harley owners www.hdforums.com for insight on your bike.
Be safe!
Mike