I have all Speedhut gauges, no issues except for my oil psi gauge. It pegs to 100psi as soon as the engine starts. When I pull the wire out of the sender, the gauge drops to 0. The sender grounds to the block, so I pulled it and inspected, threads are clean and sender is not plugged with anything. I added a ground wire from the sender to sending unit and now it keeps jumping around between 80-100 but never gives me an accurate reading. I'm calling Speedhut tomorrow. Anyone have any similar issues? When I did an internet search I found a few with the same issue.