Cadillac Repair: low oil pressure turn off engine.., oil pressure switch, low oil pressure

Question
when i am driving my 1992 caddilac el dorado and sometimes the low oil pressure turn off engine sign will pop up mostly when i am at a red light or stop at a stop sign
and the coolant temp is at 223 i will appreciate if you can help me thanks...

Answer
Try replacing the OIL PRESSURE SWITCH on the engine which is usually located near the oil filter. Buy a new one so you will see what you are looking for.

QUESTION: You DID check to make sure that the engine oil is at the FULL mark on the dipstick ?.