I have a 2006 XLT 5.4 got throttle stuck open code 2 weeks ago replaced tp sensor

niw while driving reach 30 mph it cuts out until speed goes under 30mph.

Got same code to throttle body replaced throttlebody same thing happened.

But with overdrive off runs fine no problems and no codes thrown even when I check when this happens I pull over put my scanner on and no codes.

 

Try the electronic throttle body relearn.

 

Did that still only goes up to 30 then cuts out doesn’t die just doesn’t go faster.

but with overdrive off runs fine no codes no wrench light no check engine light mechanic thinks transmission is going.