Bought a new gauge cluster off eBay last year, the oil pressure gauge went out last week. From a dead resting position, when I turn the ignition on, it raises a little to the zero psi mark, but never functions. The question is, it it the gauge or the sending unit. I just didn't want to have to bring it in to the dealer if someone knew or this happened to them! Thanks for any help you can!! It is a gas engine also.