I have 09 f150 fx4 I installed hypertech max energy prog. 3 yrs ago an had no problem till 2 months ago. While driving I lost throttle pedal an then it came back this happened 3-4 times in a week I returned to stock replaced throttle body an drove for 3 weeks then reprogammed 3 days ago an lost throttle today while passing a car Hypertech has never heard of this of course ! Has anybody out there ever had or heard of this problem ?