The first thing that you need to do is get the oil pressure checked with a mechanical gauge, if the pressure is with in spec, then replace the sender unit as it is problem faulty, start here.
May, 29, 2010 AT 8:14 AM
How do I check the oil pressure for this car? And what is standard?
How do I replace sender unit?
May, 29, 2010 AT 8:24 AM
I will need to know the model and engine size.
May, 29, 2010 AT 8:31 AM
Oldsmobile Eighty Eight 3.8 L 6 CYL year 1996
May, 29, 2010 AT 8:50 AM
Normal oil pressure is 60 PSI @ 1850 RPM hot using 5W-30 or 10W-30 oil. the sender screws into the main oil gallery and this is where the pressure gauge will also attach, see pic for location depending on VIN of car.