Hey guys I need some info on my lly that all the sudden has this oil pressure low and dinging on my dic. I ran it saturday afternoon andruns fine, shut it down and a few hours later I pulled out of driveway and this came on, I backed back in and checked oil, full, I don't drive it but had a friend hook a tech II up and it was reading 2.3-3.1psi for oil pressure. we used the tech II and moved all the guages so thinking the guage will move. How many volts does the oil pressure switch need? Today I changed the oil filter thinking something in filter was messed up but still the same thing. I read to remove filter and turn it over to see if oil goes eveywhere and nope it doesn't. The thing is that the engine has no DTC and is full of oil and sounds perfect idling and ramped up to 1200rpm for a few seconds and back to idle then off. Does anyone out there have any insight on this issue and what to do now? I have a new switch on order god forbid a dealer carry one lol. I'm looking for anything here like where would one check for oil pressure with a manual guage, how many ports to check it in too?