This is happening more often now. Driving on the highway light on the throttle going up small hills mainly I lose power for a split second and then it comes back. Check engine light comes on for about thirty seconds and then goes off. Last time it did this o pulled codes and it wasn't storing any. I will try again but does anyone have an idea where to look? As I said it really only happens on the highway light throttle in 5th gear. My mods are in my sig.