Sorry Dave, I missed the part when you said that your gas gauge always reads empty. I just redid my Ralleye gauges a couple of years ago with with the removal of the IVR in the fuel gauge (here is how it works ) and added an external solid state one, MAD bypass, AMP gauge converted to VOLT gauge. You did not say if your oil pressure gauge worked, and remember that your AMP gauge is independent of the rest. Did you inspect the bulkhead connector yet? I would remove the cluster, inspect the breakage prone pins on the circuit board (disconnect the battery first) attach a long ground wire onto the cluster (due to the fact that the factory one isn't long enough to test while the cluster is hanging) , reconnect the battery, and take a voltage output test from the ivr circuit in the fuel gauge. I would test your temp gauge voltage with the key on ( when it reads correctly), and engine running. I bet its something wrong with the internal gauge IVR.