Well I was having issues with my temp gauge and then my rpm gauge, and after a couple of days trying new gauges and looking for bad wires and grounds I realized I put a new alternator on last fall so I found that I had wired the the new alternator wrong, RPM, Water temp and Volts all seem to be working correctly, but now my oil pressure is reading 60psi at a idle in the driveway, I have the ad41 does that seem high? Let me know what your oil pressure is running I just changed oil, dont know if I'm still chasing problems or this may be with in limits, seems to me it was usually around 40 psi at idle. THanks Erik