Sometimes using the wrong oil can cause the oil pressure light to turn
on. I had to use 20w50 on my 1984 or the pressure light would turn on.
Pressure guage to confirm after you make sure the correct oil is in
the engine.

Sending usints ar on the head and on the oil filter housing. The
pressure switches have different values. The oil temp and water temp
sensors also have different values. The values are writen on the
switches and sensors. They may not be correct but you have to report
back with what values you have, what oil you are using and what your
pressure guage reads for more help.

   While you could be right, but since they both may be indications of the
same problem and they involve different sensors, I think I would think they
are for real and I would be worried about possible damage.

have two warning lights comming on one is the oil light, the other is in
the middle of the temp gauge. Believe they are both sending unit
problems.Want to know which ones they are, where they are, and part
numbers so I can replace the wright ones.