egr delete lose of boost psi

[rosco12jr]

i just finished doing my egr deletr w/ up pipe new bango bolts upgrade fuel spring, and ccv ... now everything looks tight driven about 40miles nothing leaking turbo piping no leaks ... my bro is a mechanic he doubled everything but my turbo psi is now under 20psi maybe peaks at 20 before it was more like 30 peak... he said that because we disconnected the batteries that the comp has to relearn its own tuning before it will let the motor power up all the way for lack of a better explanation can anyone shed any light on my situation thanks

[NYC F-350]

What year engine is it?

[rosco12jr]

2006 ... did through a check engine light so i have a code scanner and it was for not reading the egr system but i did leave the valve in the manifold and pluged in hoping not to through the check engin light...

[justinmix]

Originally Posted by rosco12jr

i just finished doing my egr deletr w/ up pipe new bango bolts upgrade fuel spring, and ccv ... now everything looks tight driven about 40miles nothing leaking turbo piping no leaks ... my bro is a mechanic he doubled everything but my turbo psi is now under 20psi maybe peaks at 20 before it was more like 30 peak... he said that because we disconnected the batteries that the comp has to relearn its own tuning before it will let the motor power up all the way for lack of a better explanation can anyone shed any light on my situation thanks

Never heard of this before. Sounds like you have an exhaust or boost leak somewhere. Really the EGR delete should have kept boost the same or a bit better, depending on how you deleted it.

Are you sure you don't have any exhaust leaks? Have you had someone mash it wide open throttle while looking for exhaust leaks around the turbo?

[NYC F-350]

Originally Posted by rosco12jr

2006 ... did through a check engine light so i have a code scanner and it was for not reading the egr system but i did leave the valve in the manifold and pluged in hoping not to through the check engin light...

Code will be the P0401 "insufficient egr flow" code. There is no way around that code with an '06 without a custom tune.

Also, X2 what justinmix said. I didn't lose a bit of boost after my egr cooler delete... once I fixed my exhaust leak.

That thing about removing the batteries, that is a KAM reset, and does not apply to an 06.

[rosco12jr]

its worth another look but everything went together tight we were realy methodical about not missing everything... there no leaks of any fluids

[rosco12jr]

if there was an exhaust leak after the down pipe would this cause it, i wouldnt think so but just throwing it out there i did take it apart for more room my turbo connections are good without a doubt but i would think a leak causing boost lose would have to come from the new up pipe

[NYC F-350]

The turbo inlet from the y-pipe has to be set perfectly before getting the clamp on. If you put the clamp on and was holding the y-pipe in place, you have a leak right there.
The clamp will not pull the connection together, it is not strong enough to do so. The y-pipe actually gets inserted into the turbo a bit.

[justinmix]

Usually the thing that leaks is the Y pipe to turbo connection. You have to make sure the Y pipe gets mated to to turbo properly before tightening down the clamp. The clamp will go on and seem like it draws down nice even when it's mis-aligned. I'd double check this first. Get someone to rev it for you and feel for an exhaust leak.

[rosco12jr]

what if i did not have the intake manifold on tight enought ... i checked the turbo piping by spraying the connections with soapy water...