So I ordered a brand new fuel, temp, oil pressure and amp gauge for my 68 charger from Classic Industries last year along with one of the solid state voltage limiters because it said one was required in their catalog for them to operate properly. I did omit the small capacitor when everything was installed as per the instructions that came with the new limiter. Anyways, fast forward to this past weekend, I start my car and the fuel, temp and oil pressure gauges don't work. The circuit board was in good shape with no loose pins, and I have tried grounding the sending unit wires to see if the gauges move to full and nothing happens. So my question is, if the new gauges are made to exact original specifications, why is the solid state limiter required? I have the old original limiter and capacitor that I could install to see if the gauges work, but don't want to burn them up. Is there a way to test a voltage limiter with a multimeter to determine if it is good?
Thanks for any help.