Update on the situation. I have cleaned the grounds under the hood, changed the fuel filter. No codes from the CEL. It has become steadily worse. The car will now actually die, instead of just acting like it. It doesn't matter if I am at a stop or going down the highway. It still starts back up again, but this has become a bigger problem. What else can I try to fix this? Could the battery be the culprit? Fuel pump? All help is appreciated.