2016 silverado with a cam. Otherwise stock. Locked out vvt and disabled vvt. DOD off.
Tuned VVE per greg banish instructions. Added some startup airflow. Truck drives decent and cranks up without issue.
No matter what I do this stupid truck sits there and surges up and down at idle.
I have tried stock torque tables. I have tried subtracting torque down in idle regions. I have tried smoothing out torque in idle regions. I have tried subtracting a LOT of torque from idle regions. I have tried raising speed control reserve. I have tried lowering it. I have tried the speed control multiplier. I have tried raising and lowering the idle torque offset. I have tried raising and lowering the idle external load table. I have raised and lowered and molested the speed control immediate and predicted adaptive idle parameters. I have modified MBT spark.
It. Never. Stops. Surging. I have been through hundreds of forum threads. I have searched everything I can think of. I can tune any gen 3 or gen 4 v8 in 2 hours in and out the door but this gen 5 stuff has zero consistency and is a completely unique learning cliff every single time. None of the changes affect the surging.
Please. Help me before I just refuse any more LT engine customers. I will literally pay someone to tell me the secrets. I just spent 400$ on all of the greg banish videos and it helped very little.