Oil pressure can range from 10-12 psi at idle to 40-60 psi at higher RPM. all depends on what type of oil pump you used. -------------- Original message -------------- From: ATX BUS <atx_bus@xxxxxxxxx> I'll check for a short. Overall my wiring is good, since I ran a new harness about a year ago. As for the oil pressure gauge I should give that a try. What's normal pressure? I have a 1600 single port. Thanks for the input fellas! From: "mechmark@xxxxxxxxxxx" <mechmark@xxxxxxxxxxx> To: tcb@xxxxxxxxxxxxx Sent: Tuesday, January 13, 2009 1:30:49 PM Subject: [tcb] Re: oil pressure Does the light go out with the key on and unplugged from the sending unit. check for a short first. -------------- Original message -------------- From: ATX BUS <atx_bus@xxxxxxxxx> I need some suggestions for chasing a potential oil pressure issue. Over the weekend when I started my bus I noticed the oil pressure light did not go off. I verified that there was enough oil, restarted and the same thing happened. So I replaced the oil pressure switch and the light remains on. Any helpful suggestions on trouble shooting this situation are appreciated. Jeff