Can anyone help me diagnose high oil pressure? As soon as I turn the key on, engine off, the oil pressure needle shoots up to 3 bars. I have another sending unit that I swapped in and it is the same problem. When I check the resistance between the sending unit post and ground on one, I get .45 resistance. On the other there is no continuity. So ruling out the sending unit I checked the wiring and I can find no faulty lines.

__________________

1990 190E 3.0L