Have a '06 2500 5.9L 4x4 w/46K miles. Just recently got a check engine light. Checked the computer and have a P0191 code which states new fuel filter or sensor. I changed the fuel filter, oil, and filter @ 45K, two weeks ago. Just rechecked fuel filter canister for tightness, disconnected/reconnected sensor wiring, and drained the cansiter. Disconnected the batteries to see if I could clear the light, no go.Any other ideas???? JT2500