The PCM monitors the fuel level input (FLI) circuit for electrical failure. The test fails when the signal moves outside the minimum or maximum allowable calibrated parameters for a specified fuel fill percentage in the fuel tank.
For some Ford vehicles.
SERVICE PROCEDURE
P0460 can be caused by the installation of aftermarket equipment such as remote starter systems and auxiliary fuel tanks.
Ford offers a remote starter system which is recommended. If the vehicle has an aftermarket remote starter system, it would need to be removed / disabled before diagnostics for P0460 can be started. Auxiliary fuel tanks that continuously replenish the vehicles main tank will cause a P0460. Customers that replenish the vehicles fuel tank from the auxiliary fuel tank while the key is on and engine is running, can set P0460. For vehicles with an auxiliary fuel tank, it is recommended not to use the gravity / continuous fill style auxiliary fuel tanks. It is recommended to add fuel to the vehicles main tank with the key off.
NOTE: P0460 CAUSED BY AFTERMARKET EQUIPMENT/VEHICLE MODIFICATIONS IS NOT COVERED UNDER WARRANTY.
Check the 'Possible Causes' listed above. Visually inspect the related wiring harness and connectors. Check for damaged components and look for broken, bent, pushed out, or corroded connector pins.
The cost to diagnose the P0460 2001 Ford F150 code is 1.0 hour of labor. The diagnosis time and labor rates at auto repair shops vary depending on the location, make and model of the vehicle, and even the engine type. Most auto repair shops charge between $75 and $150 per hour.
Even though the vehicle is parked, a signal being varied is sent from the fuel level sensor to Engine Control Module (ECM).
The fuel level sensor is mounted in the fuel level sensor unit. The sensor detects a fuel level in the fuel tank and transmits a signal to the Engine Control Module (ECM). The fuel level sensor consists of two parts, one is mechanical float and the other side is variable resistor. The fuel level sensor output voltage changes depending on the movement of the fuel mechanical float.
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