No Oil pressure / how to test the gauge

You’re right. I was looking upstream.

Hi David,

Which terminal on the oil pressure gauge do I touch to ground in order to verify the gauge is working?


Remove the White/Brown (W/N) wire from the gauge terminal and ground the exposed terminal briefly. The gauge should move to the right. If it doesn’t, the gauge is shot, or has no power from the green wire on the other gauge terminal.