Before I take the car to the dealer and get raped I figuired I would ask the pros here. Under load in 5th gear , anything past 1/4 throttle it has a real bad mis, if i downshift into lower gears and get on it, the mis is still there but not as bad. I know what you are thinking COIL, right, well, now it's starting to cut off if I let is mis for a few seconds, just dies, but restarts right away no problem. That threw me into a loop. NO OBDII codes. I follow a easy rule, start with the cheapest and go from there, replaced fuel filter, still doing it. I think I might have bad gas or water and or dirt in the tank. Also how common do fuel pumps give out on our cars. ?????????????????