oil pressure gauge question

Thanks for all the info. I think with mine the oil pressure gauge got too much voltage at one point, but then I thought since the gauge pegged that it was o.k.. I'll try the resistor at the sending unit wire just to be sure. My gas and temp work good and I have put in a solid state limiter, so that rules that stuff out. I was wondering if a gauge could get ruined without totally frying it?