Looking for some Help w/ 2007 columbia with a series 60 12.7

I just put a lot of money into a 2007 columbia with a series 60 12.7 at a DDEC V with 3.58 rears. Mainly the injectors were redone and the egr was reinstalled after a delete by the seller. Since I put the truck on the road it has bee ruuning sluggish to me. I put 42k on it at a 17k dry weight and I DIDN THINK I WAS GOING TO MAKE IT. Even what I consider mild hills I had to downshift in order to pass. Even empty it seems to be struggling with absolutely minor grades. Thing is this, today I thought to myself that if the truck went into to freightiner deleted and they reinstalled egr and injectors how is it that I can run with the same turbo. Ive been seriously considering the B&W 21 up until today when i talked to the momentum works salesman whom said it would not accomodate the egr 12.7. He advised a garrett GTA45. SOoooo.. the same turbo is on the engine that has the egr reinstalled. That...doesn't seem right. I looked at it today and the unit most closest to the firewall seems like it is a bit more charred than when i first got on the road. I also felt the stacks today at the fuel island right off of a good distance and they were cool which seemed odd. Arent they supposed to be hot? So with what I stated does anybody have any thoughts. Im looking into a mechanic shop that can inspect the exhaust here in Florida before I take another load Sunday.

Detroit 12.7L Series 60 EGR Turbo (DDEC V) | Garrett GTA4502V - 758160-0006 |

 

moderator can you move this thread to the experienced trucker forum? thx

 

Well….. there is a big update here. Today while under a load I start to hear the turbo going on and off like in 1-2 second spurts while I had the throttle pressure steady. It was shocking but it returned to normal after about 2 minutes. I drive about 60 more and here it goes again and now I am loosing speed and rpm and it won’t go back up. I’m in tenth gear. A hill comes and I drop to nine and the turbo seemed fine there so on the downside I shift back to ten and the boost is better now but still not getting past 65. This goes on for about 50 miles. I was a total of 90 miles from my receiver. At 40 miles out tenth gear was able to maintain 57 with what I’m hearing is a broken boost. 15 miles from the receiver 9th started acting a little shakier than at first but being direct I’m thinking the 3.58 helped to get me to the receiver. I’ll be a FTL in the morning as there is one here. I’ll have to DIY another time. I’m really thinking that the previous owner COULD NOT have had a egr turbo on if the engine was deleted. He could have but to me it’s more logical GE put on a non egr to go with the delete and when FTL did the egr install they forgot to speak about the turbo and I’ve been running a egr 12.7 with a non egr turbo. Can anyone tell if the turbo in the pic is a egr turbo? Has anyone had symptoms like this? I’ll update as I find things out. I did hear about the o-ring boost pressure possibility. And the vpod posdibilty, but if it’s an inappropriate turbo on the problem would be obvious. I hope FTL can be honest if it’s just a minor repair.