Looking at your mods, this truck would run with a stock tune. Not great, but it will run and drive. What exact issue are you having? Post codes, I'm betting there is another issue.
As stated already, check the pressure with a gauge. Your theroy of too much pressure is correct. It will cause the regulator to not close off correctly, which will cause higher 'actual' rail pressure. It could also be the regulator itself starting to fail. Do you run any fuel treatment in the...
Hey guys! Been a minute. Came looking for some info, and saw an easy question posted lol. I may be more active, but been crazy busy lately. Also switched to the dark side, 4th gen cummins with plenty of goodies :cool:
Look up the ice pick method for LLY.
GM has a repair kit for injector connector #2 and #7 if you want to go that route.
Repair connector, clear code and good to go.
2 temp folders...
System (Windows) files: C:\Windows\Temp
&
User files : C:\Users"name"\AppData\Local\Temp
Shift + Delete will by pass the recycle bin all together
Also delete all old restore points in management (Create a new one while there just in case too).
HDD may be be on its...
Editing my post (It's quoted in Korys post below).
Thanks for clarification Kory. I was under a different impression. Efi live has a post as well, however I was not aware they were not working on the maps in beta. Appreciate the work in this direction.