about a week or two ago my truck started gettin horrible gas mileage and im not sure why. its always been bad but recently it is easily twice as bad as it was before. i already changed the spark plugs and wires to see if that would help... it didnt lol. the weather has been warming up here lately so ive starting driving with the windows down but i dont think that would make too much of a difference. i heard somewhere that it might be some sensor in the tbi that went bad... do yall know what it might be and how much it would cost to get it replaced? edit: im gonna change the fuel filter this weekend to see if that would help too.