[SG930]

Taking a cruise yesterday and noticed while shifting that the oil pressure gauge stayed maxed out at 5 bar. Later after cooling down, with ignition on the gauge is also pegged out. It's pegged out after removing wire at the sending unit. It does go to zero when I ground the wire at the sending unit. It goes to zero when I remove wire at the gauge itself. Seems like a gauge issue and not a sender issue? Gauge is also foggy too. Only water it sees is the occasional wash. Any help appreciated! Thanks.