I need some help figuring out an issue with my '08 6.7L. About a month ago it started stumbling after initial startup, but would quickly clear up. Then about two weeks ago it started missing once it reached operating temperature while in gear at idle, but will also occur when towing my bass boat. When it does it with the boat it literally jerks the truck. At first I suspected bad fuel, but I was able to rule that out after filling up with fresh fuel. I have done an injector kill test with no luck, basically it just gets worse as I kill an injector.
Fuel mods consist of AD II 165 (new filter), ATS duel fuelers (both pumps replaced 3 months ago) and 100% over injectors (about 9000 miles on them).
I have attached two videos, the first video shows the rail pressure (left) and lift pump pressure (middle). The second video is just for the audio.
Any thoughts or suggestions are greatly appreciated.
[ame]http://vid645.photobucket.com/albums/uu172/thepitts5/IMG_0160_zpsxvwbpk8c.mp4[/ame]
[ame]http://vid645.photobucket.com/albums/uu172/thepitts5/IMG_0161_zpstr6t4mdy.mp4[/ame]
Fuel mods consist of AD II 165 (new filter), ATS duel fuelers (both pumps replaced 3 months ago) and 100% over injectors (about 9000 miles on them).
I have attached two videos, the first video shows the rail pressure (left) and lift pump pressure (middle). The second video is just for the audio.
Any thoughts or suggestions are greatly appreciated.
[ame]http://vid645.photobucket.com/albums/uu172/thepitts5/IMG_0160_zpsxvwbpk8c.mp4[/ame]
[ame]http://vid645.photobucket.com/albums/uu172/thepitts5/IMG_0161_zpstr6t4mdy.mp4[/ame]