I've got a 2014 gt mustang with a vmp 2650 and twin 69. I know the twin 69 even per vmp should use the gt500 tb tables. Problem I've got is I can hold constant throttle and it goes from closed to part throttle and surges really bad while it's doing this. I can put the wrong throttle tables in and it will drive better, but still surge under really light throttle.
Anywhere in the logs where throttle is held steadily and barely applied while holding higher rpms you can see the map and maf jumping. I've gone as far as making dd tables the same, changing cam tables, trying different throttle maps with different decel settings to the point of killing dfco. Going in circles here. Really wondering if something isn't up with the pedal itself since it doesn't change at all while the throttle is going into closed and part throttle settings.
Any help is greatly appreciated.