So I installed brand new autometer gauges, WITH the new sensors that came with them. My voltmeter works perfectly, and I THINK my water temp does as well (old one never really got very high), but all my oil pressure and fuel level do it go up to zero when I turn the key on, but when running, don't show any different readings. Any ideas? I've done continuity checks on wires from sensors to gauges, and all voltages needed are present....