Okay, while driving, or sometimes accelerating, I will feel the 4cyl beast chug then continue running smooth, or chug then start chugging so hard I can't accelerate any more and have to pull over and let it idle out. Usually after that, the check engine light comes on. It goes off on it own in about a day, but I can't figure out what causes the hesitation, and it turns off before I can have it read. Fuel filter or sensor maybe?
TIA
TIA