DTC P0461: Fuel Level Sensor Circuit - Performance Problem: Condition
WARNING: This page is about a different car, the 2003 Suzuki XL-7. However, it is still accessible from the selected car via links, so may be relevant.
DTC P0461 is set when change in fuel level signal is less than predetermined when fuel injector volume is more than predetermined. MIL is illuminated when ECM detects malfunction during 2 consecutive drive cycles.