Hey all! New here and new owner of a 1997 firebird formula. Love the car, but it's been stressful. Since I've owned it, it's been hot idling at only 5-7 psi. Everyone I've spoke to said it probably needs another rebuild (has 196k miles on it, had a full rebuild at 121k). Anyways, last ditch effort I hooked up a mechanical pressure gauge in place of the oil sensor switch and she held steady at 20 psi for almost 50 mins. So it looks like a bad oil gauge and/or cluster?
Should I leave it or try to replace it? How involved is that?