Discussion Starter · #1 ·
My 6.0 has a surge at about 2-3k that gets better as it warms up. There are no codes or lights. It will surge in neutral very slightly. You can see a pulse in the tach and boost gauge while driving and in neutral. The truck drives fine other than that. It boosts to about 25 psi. The EGR is clean/new. If I pull the plug on the VGT turbo actuator it runs smooth at all rpms. I am waiting for the Scan Gauge to see what is going on in the computer/engine. I pulled the IPR and it ran the same. Sorry I don't have more. I did change the Map cleaned the map tube.