My oil pressure gauge is direct reading, and my temp gauge is electric, so I cannot switch the two. And with the lead disconnected, it reads full cold; with the lead grounded, it reads full hot. It seems to be following the amp gauge as it goes up (to full hot) when the amp gauge reads a good charge. And then drops to ‘normal’ when I am at idle and the amp gauge shows a dishcharge. I’ll do some more tests with the lights and voltmeter and see what I get.
Lee.
