I just finished installing my Prosport Premium series oil pressure and Egt gauges a couple days ago and have ran into a problem. For the first half hour of driving the car the oil pressure gauge worked correctly. I pulled into a gas station and shut off the car and when i turned it back on the gauge read maxed out at 150 and has stayed there for the past couple of days. Even with the car not started but with the key in it still reads 150. When we disconnect the wire running to the oil pressure sensor the gauge reads 120. Everything is wired correctly and we can not figure out whats wrong, i have also tried to contact prosport and they have not returned any of my calls when they said that they would. Does anyone have any suggestions, Thanks alot, Daryl.

 

pm ultimate cc.....https://www.evolutionm.net/forums/members/33558-ultimate-cc.html he sells the prosport gauges and i am sure he will help you out.