warning low oil pressure 95 aurora

dip stick shows oil level okay info center flashing warning and chiming,any suggestions? other situations exsist but the forum chat has lead me to several solutions,hesitation,hard starts popping,jerking at accellaration I'am about to do wires,plugs,fpr,fuel pump, fuel rail rec. already done in the past also fpr changed in the past,fuel filter less than a year old. oem plugs seem to be questionable with you guys on the forum chat also the wires, thinking of installing K&M air filter.If oil sending unit maybe the problem can I change it and where is it located on this aurora? H E L P ready to make my move it's the wifes car don't want her stranded or needing a tow truck.

moved to proper forum