2004 Mercury Marauder PO191 code

My Marauder started idleing rough today and hasn't been driven in about a month and then it died and now won't restart it just turns over i checked the coded with my code scanner and it comes up with a PO191 fuel pressure senser fault has anyone had this problem and what did you do to fix it? My car only have 12000 miles on it and does alot of sitting any help would be apprciated

Went to the dollor store the other day came out started the 2004 mercury sable it started but died then it would not do anything thing not even turn over waited 30sec it stated up.

Yes, this is an old thread but it might help someone with this problem in the future, so:

1. The P0191 is usually a faulty fuel pump.
2. Don't run your car out of gas!