I've had the Ultra Lite Fuel Pressure Gauge (No. 4463) for 6 months now and it is not working properly. It stopped working about 3 weeks ago. The pointer is not moving at all (it is stuck at 30 psi). There is fuel pressure in the system since I checked it with my scanner. I took off the gauge from the pod and everything looks normal. The voltage on the pressure sender unit is reading 5.02V. I found out that if I unplug the gauge and plug it back again with the engine running, the gauge will start reading fuel pressure again. However, when I shut the ignition off and start the car again, the gauge will not work at all. I'd have to do the whole process again for the gauge to work. What could be wrong? Should I send the gauge and the sender unit to AutoMeter for repair?