I can definitly help you out with this if you can't figure this out. Also not sure what the original owner did but if there isnt a sandwich he may have the oil psi gauge hooked up under the TMIC with an Oil Galley Plug adapter. I do not like this route of install, but have seen it done several times. Let us know what you find out and we will all do our best to walk you through as best as possible to resolve the issue.