Code for fuel tank pressure sensor popping up.

You'll likely need to replace the evap charcoal canister and the vent valve / solenoid. Contact FoMoCo for technical service bulletin information - *possibly* a special program fix. Dealer service may be helpful.

As an additional note, this vehicle had a fuel tank design issue. Some tanks were replaced. As pushrod said, consult your local dealership to see if any remedy is available. I will caution you though -- there was never a "recall" - only a technical service bulletin, so Ford is highly unlikely to participate in the cost of any repairs on a 13 year old vehicle regardless.