Did you replace the oil pressure sender with another glowshift one? If so how long have they lasted for you?
When they went bad did it just read no oil pressure or what?
Mine was reading super low and then jumping up a little bit and then back down. Had something rattling in it when it was removed.

 

I have a Glowshift boost gauge and it works fine, no issues and I'd say its accurate. I also bought their dual gauge pod which Im happy with. Plus they always have a 10% coupon floating around online.