I have a 99 town car and the engine light came on and a code came up po460 what is this code can u help

P0460 Fuel Level Sensor A Circuit Malfunction, ford posted this service tip for all 97 to 05 ford vehicles - INTERMITTENT MIL ON WITH DTC P0460 - SERVICE TIP
SOME 1997-2005 VEHICLES MAY EXHIBIT AN INTERMITTENT MALFUNCTION INDICATOR LAMP (MIL) ON WITH DTC P0460 (FUEL LEVEL SENSOR CIRCUIT MALFUNCTION). THIS CONDITION MAY BE CAUSED BY AN IMPROPERLY INSTALLED REMOTE START SYSTEM, AFFECTING THE FLUID LEVEL INPUT (FLI) INFORMATION TO THE PCM. THE CONDITION MAY BE DIFFICULT TO DUPLICATE. TO SERVICE, CHECK FOR AN IMPROPERLY INSTALLED FORD OR AFTERMARKET REMOTE STARTER SYSTEM. THE INSTRUMENT CLUSTER OR HEC MUST HAVE POWER TO ALL 'HOT IN RUN' CIRCUITS FOR THE FUEL GAUGE CIRCUIT TO PROPERLY RELAY FLI INFORMATION TO THE PCM (EITHER BY NETWORK COMMUNICATION OR A DIRECT HARDWIRE CIRCUIT another I have seen addresses the fuel problem just says the tank got over filled, the gas cap is bad, and that the system is clogged due to a poor grade of fuel being used, Ford recommends a Chevron fuel cleaner additive that should improve this problem