Question- have everyone new to the forum, thanks for having me! Have an 02 Lincoln LS V6 that is running rough and smells of gas when sitting. Check engine light will come and go, it sat for a couple months over the summer put a couple fuel treatments in and it ran great. Now Started running the cat full time about 2-1/2 weeks ago, ran rough at first then was great, now back to being rough and smelling of gas. Anyone else thinking it’s the fuel filter? Or am I missing something? Water in the gas? I say that because trunk got flooded also, wonder if water is getting in the tank. New to here. This is my sons car, trying to get it right for him!