3406E warms up looses boost ?

[Heavyhauler]

i've done some consulting with my friend ( literally neighbor ) that owns the truck. we haul together 5 days a week and wrench on each others trucks. i've invited him to this forum to run along this super helpful wheel of knowledge. There is a list of good valid questions to be confirmed on our end and helpful info to top it off.

$tree98 = What do you think is a healthy boost range for a cat? I run the ISX so I wouldn't know particularly.

Rawze = I agree with the generalized list, we will work through the check list and report back. I will also agree about the possible programing that could exist is a loose end to be answered. It might be tuned at 550 but I can't officially confirm, tho I'll talk to the driver/owner in the am and see. Hopefully he will be joined asap

Bengy88 = There are no resisters in line of any kind that I'm aware of. Tho we talked about that as an option but we never went down that rabbit hole of fooling the ECM