Turbo surge cold idle

[Lonestar10]

should still have 3rd stage engine brake with a proper tune unless some hackjob removed the VGT Turbo.

at idle with a proper tune the turbo should go to a set position and stay there till the gogo pedal is pushed then it should follow its turbo map.

most likely bad tune

Steps to see

1. Get laptop with insite 7.6.2 or newer/C@l-term 3.14 or newer and an inline 5 or 6 to plug into truck
2. get with someone near you that has the correct programs to inspect the truck while you wait for yours if you dont have it.
3. all programs and information are readily available for free or some cost accross the interwebs depending where you look.

Programs/adapters needed
Inline 5 or 6 Adapter - can be found on ebay 200-300$
Insite 7.6.2 or newer - Can be found on the net for free to 100$
C@l-Term 3.14-3.17 - Can be found on the net for free to 100$

possibly someone with more information will steer you in the right direction. as software trading is not found on this site.

Things to check if you have access to insite
go into the data monitor and see if the jake when set to third stage says 33/66/100% in the monitor if it only says 66% that is only stage 2 and it might be an issue with the switch or programming. and the same if it says 100%.

another possibility as the engine brake takes the turbo to 70% or higher is that the turbo could be stuck below a certain closed %. i had this problem on my truck the turbo got stuck in the 0-35% range and couldnt close any further as something had happened to the vg ring above those %s. the truck could drive fine but the engine brake was severily gimped.