We have replaced the throttle body thought maybe it was defective the changed the plugs just as a precaution truck will turn over and start idles at like 500 if you push on the gas it increases then dies the idle is terribly rough and it’s throwing a code P0068 I think I have added a video any help would be appreciate ed

 

This thread might be of help:

https://www.trailvoy.com/threads/red...r-p0068.37387/

Good Luck!