Electronic throttle unit/accelerator position sensor

What is your question?

On long trips my car will lose acceleration at about 60 mph can have gas pedal all the way down but no acceleration. If I stop and turn car off for several minutes it resets and runs fine for a short distance then repeat the process. I've read about both the accelerator pedal position sensor and electronic throttle position sensor issues with Nissan one thing that's not consistent with other people's problem is I have no check engine light coming on as well as I've run a diagnostics twice now and am not getting any of the codes associated with either of these problems. Please help not sure how to proceed it's a 2011 Altima also.

What makes this problem better or worse?

Happens when going up hill

How long has your 2011 Nissan Altima had this problem?

Since I got the car about 15 months ago but only happens when driving long distances