I have a 1996 5.2. I will start the engine and let it warm up.It will run for about 10 minutes and the oil light comes on. Then about a minute later the oil pressure drops to zero. If I increase the idle speed it will be fine and when I let off the throttle it does the same thing. I have replaced the oil pump and the sending unit.
i have a 1996 too this is normal at idle it will go to zero then tap the gas it will go up. as i found out and been hearing its normal for these dodge's to do that just keep checking ur oil once awhile to make sure its nothing bad