My temperature gauge is stuck at max/hot after I installed new gauge faces(when the ignition is turned on). Also Randy tried grounding out the terminal at the thermostat and it caused the needle to jump slightly. The needle seems to be reinstalled correctly, because by hand, it only moves within the range of the gauge, hitting built-in stoppers top and bottom. I didn't plug in the supermonitor... is that a possible cause? Any ideas on what I should check?