Looking for some help, while my truck is sitting at idle it has something similar to a lope sound to it. Also every now and then when Im driving and giving it fuel it cuts out a few times like its not getting enough fuel.
Sounds liek your fuel pressure regulator is sticking. Check the desired VS actual fuel pressure with a scanner and see if they are holding close together when it happens. If the actual is fluctuating alot, then chances are your regulator is sticking.