hey so i have a 95 camaro z-28 and only recently have i noticed that my oil pressure gage goes below half should i be concered that my oil pump is going to go soon or could it be a bad switch on it please let me know and if it is going how much a shop charge to replace one

 

at idle the oil pressure goes to about 1/4 and up to 1/2 with acceleration (depending on oil viscosity, strength of the pump ect)

 

Did you get it squared away?